28932340372 has 24 divisors (see below), whose sum is σ = 54541779656. Its totient is φ = 13349605248.

The previous prime is 28932340363. The next prime is 28932340429. The reversal of 28932340372 is 27304323982.

It can be written as a sum of positive squares in 4 ways, for example, as 30980356 + 28901360016 = 5566^2 + 170004^2 .

It is a super-2 number, since 2×28932340372² (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 7 ways as a sum of consecutive naturals, for example, 110878 + ... + 264874.

Almost surely, 2^28932340372 is an apocalyptic number.

It is an amenable number.

28932340372 is a deficient number, since it is larger than the sum of its proper divisors (25609439284).

28932340372 is a wasteful number, since it uses less digits than its factorization.

28932340372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157627 (or 157625 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 28932340372 in words is "twenty-eight billion, nine hundred thirty-two million, three hundred forty thousand, three hundred seventy-two".