29157339 has 4 divisors (see below), whose sum is σ = 38876456. Its totient is φ = 19438224.

The previous prime is 29157313. The next prime is 29157347. The reversal of 29157339 is 93375192.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 29157339 - 2¹⁹ = 28633051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29157297 and 29157306.

It is not an unprimeable number, because it can be changed into a prime (29157239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4859554 + ... + 4859559.

It is an arithmetic number, because the mean of its divisors is an integer number (9719114).

Almost surely, 2^29157339 is an apocalyptic number.

29157339 is a deficient number, since it is larger than the sum of its proper divisors (9719117).

29157339 is an equidigital number, since it uses as much as digits as its factorization.

29157339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9719116.

The product of its digits is 51030, while the sum is 39.

The square root of 29157339 is about 5399.7536054898. The cubic root of 29157339 is about 307.7863074709.

It can be divided in two parts, 291 and 57339, that added together give a triangular number (57630 = T₃₃₉).

The spelling of 29157339 in words is "twenty-nine million, one hundred fifty-seven thousand, three hundred thirty-nine".