28902825840 has 160 divisors (see below), whose sum is σ = 107788101120. Its totient is φ = 6258650112.

The previous prime is 28902825829. The next prime is 28902825857. The reversal of 28902825840 is 4852820982.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 28902825840.

It is a congruent number.

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, 420819 + ... + 484658.

It is an arithmetic number, because the mean of its divisors is an integer number (673675632).

Almost surely, 2^28902825840 is an apocalyptic number.

28902825840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28902825840 is an abundant number, since it is smaller than the sum of its proper divisors (78885275280).

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

28902825840 is a wasteful number, since it uses less digits than its factorization.

28902825840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905519 (or 905513 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 48.

The spelling of 28902825840 in words is "twenty-eight billion, nine hundred two million, eight hundred twenty-five thousand, eight hundred forty".