29972355 has 16 divisors (see below), whose sum is σ = 54806784. Its totient is φ = 13701600.

The previous prime is 29972351. The next prime is 29972359. The reversal of 29972355 is 55327992.

It is an interprime number because it is at equal distance from previous prime (29972351) and next prime (29972359).

It is not a de Polignac number, because 29972355 - 2² = 29972351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29972351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142621 + ... + 142830.

It is an arithmetic number, because the mean of its divisors is an integer number (3425424).

Almost surely, 2^29972355 is an apocalyptic number.

29972355 is a deficient number, since it is larger than the sum of its proper divisors (24834429).

29972355 is a wasteful number, since it uses less digits than its factorization.

29972355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285466.

The product of its digits is 170100, while the sum is 42.

The square root of 29972355 is about 5474.7013617183. The cubic root of 29972355 is about 310.6277774381.

The spelling of 29972355 in words is "twenty-nine million, nine hundred seventy-two thousand, three hundred fifty-five".