29242431 has 16 divisors (see below), whose sum is σ = 45871200. Its totient is φ = 18347904.

The previous prime is 29242427. The next prime is 29242439. The reversal of 29242431 is 13424292.

It is not a de Polignac number, because 29242431 - 2² = 29242427 is a prime.

It is a super-2 number, since 2×29242431² = 1710239541579522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 29242395 and 29242404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29242439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31396 + ... + 32313.

It is an arithmetic number, because the mean of its divisors is an integer number (2866950).

Almost surely, 2^29242431 is an apocalyptic number.

29242431 is a deficient number, since it is larger than the sum of its proper divisors (16628769).

29242431 is a wasteful number, since it uses less digits than its factorization.

29242431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63735 (or 63729 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 29242431 is about 5407.6271136239. The cubic root of 29242431 is about 308.0854284590.

The spelling of 29242431 in words is "twenty-nine million, two hundred forty-two thousand, four hundred thirty-one".