29157939 has 24 divisors (see below), whose sum is σ = 43195152. Its totient is φ = 18947520.

The previous prime is 29157937. The next prime is 29157943. The reversal of 29157939 is 93975192.

It is a happy number.

It is not a de Polignac number, because 29157939 - 2¹ = 29157937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29157894 and 29157903.

It is not an unprimeable number, because it can be changed into a prime (29157937) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94824 + ... + 95130.

It is an arithmetic number, because the mean of its divisors is an integer number (1799798).

Almost surely, 2^29157939 is an apocalyptic number.

29157939 is a deficient number, since it is larger than the sum of its proper divisors (14037213).

29157939 is a wasteful number, since it uses less digits than its factorization.

29157939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547 (or 544 counting only the distinct ones).

The product of its digits is 153090, while the sum is 45.

The square root of 29157939 is about 5399.8091632946. The cubic root of 29157939 is about 307.7884186663.

The spelling of 29157939 in words is "twenty-nine million, one hundred fifty-seven thousand, nine hundred thirty-nine".