38390700 has 72 divisors (see below), whose sum is σ = 112662928. Its totient is φ = 10091520.

The previous prime is 38390699. The next prime is 38390707. The reversal of 38390700 is 709383.

38390700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (38390707) 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 23 ways as a sum of consecutive naturals, for example, 21024 + ... + 22776.

Almost surely, 2^38390700 is an apocalyptic number.

38390700 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38390700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56331464).

38390700 is an abundant number, since it is smaller than the sum of its proper divisors (74272228).

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

38390700 is a wasteful number, since it uses less digits than its factorization.

38390700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843 (or 1836 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 38390700 is about 6196.0229179692. The cubic root of 38390700 is about 337.3458280752.

The spelling of 38390700 in words is "thirty-eight million, three hundred ninety thousand, seven hundred".