28038010 has 64 divisors (see below), whose sum is σ = 67785984. Its totient is φ = 8064000.

The previous prime is 28038001. The next prime is 28038029. The reversal of 28038010 is 1083082.

It is a super-2 number, since 2×28038010² = 1572260009520200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8610 + ... + 11410.

It is an arithmetic number, because the mean of its divisors is an integer number (1059156).

Almost surely, 2^28038010 is an apocalyptic number.

28038010 is an abundant number, since it is smaller than the sum of its proper divisors (39747974).

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

28038010 is a wasteful number, since it uses less digits than its factorization.

28038010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 28038010 is about 5295.0930114588. The cubic root of 28038010 is about 303.7962407093.

The spelling of 28038010 in words is "twenty-eight million, thirty-eight thousand, ten".