29974082540 has 24 divisors (see below), whose sum is σ = 65682338400. Its totient is φ = 11468344448.

The previous prime is 29974082521. The next prime is 29974082557. The reversal of 29974082540 is 4528047992.

It is a super-2 number, since 2×29974082540² (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 7 ways as a sum of consecutive naturals, for example, 32580065 + ... + 32580984.

It is an arithmetic number, because the mean of its divisors is an integer number (2736764100).

Almost surely, 2^29974082540 is an apocalyptic number.

29974082540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29974082540 is an abundant number, since it is smaller than the sum of its proper divisors (35708255860).

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

29974082540 is a wasteful number, since it uses less digits than its factorization.

29974082540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65161081 (or 65161079 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 29974082540 in words is "twenty-nine billion, nine hundred seventy-four million, eighty-two thousand, five hundred forty".