28236413390 has 32 divisors (see below), whose sum is σ = 51273406080. Its totient is φ = 11195410464.

The previous prime is 28236413389. The next prime is 28236413477. The reversal of 28236413390 is 9331463282.

It is a super-2 number, since 2×28236413390² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 594917 + ... + 640623.

It is an arithmetic number, because the mean of its divisors is an integer number (1602293940).

Almost surely, 2^28236413390 is an apocalyptic number.

28236413390 is a deficient number, since it is larger than the sum of its proper divisors (23036992690).

28236413390 is a wasteful number, since it uses less digits than its factorization.

28236413390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46256.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 28236413390 in words is "twenty-eight billion, two hundred thirty-six million, four hundred thirteen thousand, three hundred ninety".