38090520 has 128 divisors (see below), whose sum is σ = 136785600. Its totient is φ = 9372672.

The previous prime is 38090519. The next prime is 38090527. The reversal of 38090520 is 2509083.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38090527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12684 + ... + 15396.

Almost surely, 2^38090520 is an apocalyptic number.

38090520 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 38090520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68392800).

38090520 is an abundant number, since it is smaller than the sum of its proper divisors (98695080).

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

38090520 is a wasteful number, since it uses less digits than its factorization.

38090520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2746 (or 2736 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 38090520 is about 6171.7517772509. The cubic root of 38090520 is about 336.4642816339.

The spelling of 38090520 in words is "thirty-eight million, ninety thousand, five hundred twenty".