28634603460 has 48 divisors (see below), whose sum is σ = 80474990400. Its totient is φ = 7607503744.

The previous prime is 28634603443. The next prime is 28634603471. The reversal of 28634603460 is 6430643682.

It is a happy number.

It is a super-2 number, since 2×28634603460² (a number of 22 digits) contains 22 as substring.

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, 870930 + ... + 903209.

It is an arithmetic number, because the mean of its divisors is an integer number (1676562300).

Almost surely, 2^28634603460 is an apocalyptic number.

28634603460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28634603460 is an abundant number, since it is smaller than the sum of its proper divisors (51840386940).

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

28634603460 is a wasteful number, since it uses less digits than its factorization.

28634603460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774420 (or 1774418 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 28634603460 in words is "twenty-eight billion, six hundred thirty-four million, six hundred three thousand, four hundred sixty".