38491230 has 64 divisors (see below), whose sum is σ = 99283968. Its totient is φ = 9515520.

The previous prime is 38491223. The next prime is 38491237. The reversal of 38491230 is 3219483.

38491230 = 370² + 371² + ... + 549².

38491230 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 (38491223) and next prime (38491237).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38491237) by changing a digit.

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, 35679 + ... + 36741.

It is an arithmetic number, because the mean of its divisors is an integer number (1551312).

Almost surely, 2^38491230 is an apocalyptic number.

38491230 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 38491230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49641984).

38491230 is an abundant number, since it is smaller than the sum of its proper divisors (60792738).

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

38491230 is a wasteful number, since it uses less digits than its factorization.

38491230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 38491230 is about 6204.1300760058. The cubic root of 38491230 is about 337.6400296848.

The spelling of 38491230 in words is "thirty-eight million, four hundred ninety-one thousand, two hundred thirty".