38220630 has 64 divisors (see below), whose sum is σ = 107688960. Its totient is φ = 8498304.

The previous prime is 38220599. The next prime is 38220661. The reversal of 38220630 is 3602283.

38220630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (38220599) and next prime (38220661).

It is a self number, because there is not a number n which added to its sum of digits gives 38220630.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5311 + ... + 10229.

It is an arithmetic number, because the mean of its divisors is an integer number (1682640).

Almost surely, 2^38220630 is an apocalyptic number.

38220630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38220630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53844480).

38220630 is an abundant number, since it is smaller than the sum of its proper divisors (69468330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38220630 is a wasteful number, since it uses less digits than its factorization.

38220630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4973.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 38220630 is about 6182.2835586861. The cubic root of 38220630 is about 336.8469456755.

It can be divided in two parts, 382 and 20630, that added together give a palindrome (21012).

The spelling of 38220630 in words is "thirty-eight million, two hundred twenty thousand, six hundred thirty".