29928159 has 6 divisors (see below), whose sum is σ = 43229576. Its totient is φ = 19952100.

The previous prime is 29928149. The next prime is 29928179. The reversal of 29928159 is 95182992.

It is not a de Polignac number, because 29928159 - 2⁵ = 29928127 is a prime.

It is a super-2 number, since 2×29928159² = 1791389402258562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29928149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1662667 + ... + 1662684.

Almost surely, 2^29928159 is an apocalyptic number.

29928159 is a deficient number, since it is larger than the sum of its proper divisors (13301417).

29928159 is a wasteful number, since it uses less digits than its factorization.

29928159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3325357 (or 3325354 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 29928159 is about 5470.6634880972. The cubic root of 29928159 is about 310.4750226900.

The spelling of 29928159 in words is "twenty-nine million, nine hundred twenty-eight thousand, one hundred fifty-nine".