38028830 has 32 divisors (see below), whose sum is σ = 82835136. Its totient is φ = 12271104.

The previous prime is 38028829. The next prime is 38028833. The reversal of 38028830 is 3882083.

It is a super-2 number, since 2×38028830² = 2892383822337800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38028833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14789 + ... + 17168.

It is an arithmetic number, because the mean of its divisors is an integer number (2588598).

Almost surely, 2^38028830 is an apocalyptic number.

38028830 is an abundant number, since it is smaller than the sum of its proper divisors (44806306).

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

38028830 is a wasteful number, since it uses less digits than its factorization.

38028830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31988.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 38028830 is about 6166.7519813918. The cubic root of 38028830 is about 336.2825417758.

The spelling of 38028830 in words is "thirty-eight million, twenty-eight thousand, eight hundred thirty".