29742438 has 16 divisors (see below), whose sum is σ = 64892736. Its totient is φ = 9012840.

The previous prime is 29742421. The next prime is 29742443. The reversal of 29742438 is 83424792.

It is a super-2 number, since 2×29742438² = 1769225236367688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 29742396 and 29742405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225256 + ... + 225387.

It is an arithmetic number, because the mean of its divisors is an integer number (4055796).

Almost surely, 2^29742438 is an apocalyptic number.

29742438 is an abundant number, since it is smaller than the sum of its proper divisors (35150298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29742438 is a wasteful number, since it uses less digits than its factorization.

29742438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450659.

The product of its digits is 96768, while the sum is 39.

The square root of 29742438 is about 5453.6628058581. The cubic root of 29742438 is about 309.8314657970.

The spelling of 29742438 in words is "twenty-nine million, seven hundred forty-two thousand, four hundred thirty-eight".