29131972 has 12 divisors (see below), whose sum is σ = 51137296. Its totient is φ = 14521320.

The previous prime is 29131969. The next prime is 29132003. The reversal of 29131972 is 27913192.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9678 + ... + 12325.

Almost surely, 2^29131972 is an apocalyptic number.

It is an amenable number.

29131972 is a deficient number, since it is larger than the sum of its proper divisors (22005324).

29131972 is a wasteful number, since it uses less digits than its factorization.

29131972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22338 (or 22336 counting only the distinct ones).

The product of its digits is 6804, while the sum is 34.

The square root of 29131972 is about 5397.4041909051. The cubic root of 29131972 is about 307.6970231393.

It can be divided in two parts, 29131 and 972, that added together give a palindrome (30103).

The spelling of 29131972 in words is "twenty-nine million, one hundred thirty-one thousand, nine hundred seventy-two".