29742431 has 8 divisors (see below), whose sum is σ = 30564240. Its totient is φ = 28931328.

The previous prime is 29742421. The next prime is 29742443. The reversal of 29742431 is 13424792.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29742431 is a prime.

It is a super-2 number, since 2×29742431² = 1769224403579522, 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 (29742421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3125 + ... + 8321.

It is an arithmetic number, because the mean of its divisors is an integer number (3820530).

Almost surely, 2^29742431 is an apocalyptic number.

29742431 is a deficient number, since it is larger than the sum of its proper divisors (821809).

29742431 is an equidigital number, since it uses as much as digits as its factorization.

29742431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5353.

The product of its digits is 12096, while the sum is 32.

The square root of 29742431 is about 5453.6621640875. The cubic root of 29742431 is about 309.8314414903.

The spelling of 29742431 in words is "twenty-nine million, seven hundred forty-two thousand, four hundred thirty-one".