29157457 has 16 divisors (see below), whose sum is σ = 35276800. Its totient is φ = 23541840.

The previous prime is 29157449. The next prime is 29157461. The reversal of 29157457 is 75475192.

It is not a de Polignac number, because 29157457 - 2³ = 29157449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29157157) 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, 27544 + ... + 28582.

It is an arithmetic number, because the mean of its divisors is an integer number (2204800).

Almost surely, 2^29157457 is an apocalyptic number.

It is an amenable number.

29157457 is a deficient number, since it is larger than the sum of its proper divisors (6119343).

29157457 is a wasteful number, since it uses less digits than its factorization.

29157457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276.

The product of its digits is 88200, while the sum is 40.

The square root of 29157457 is about 5399.7645319032. The cubic root of 29157457 is about 307.7867226750.

The spelling of 29157457 in words is "twenty-nine million, one hundred fifty-seven thousand, four hundred fifty-seven".