29442638 has 4 divisors (see below), whose sum is σ = 44163960. Its totient is φ = 14721318.

The previous prime is 29442619. The next prime is 29442641. The reversal of 29442638 is 83624492.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7360658 + ... + 7360661.

It is an arithmetic number, because the mean of its divisors is an integer number (11040990).

Almost surely, 2^29442638 is an apocalyptic number.

29442638 is a deficient number, since it is larger than the sum of its proper divisors (14721322).

29442638 is a wasteful number, since it uses less digits than its factorization.

29442638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14721321.

The product of its digits is 82944, while the sum is 38.

The square root of 29442638 is about 5426.1070759800. The cubic root of 29442638 is about 308.7869276751.

The spelling of 29442638 in words is "twenty-nine million, four hundred forty-two thousand, six hundred thirty-eight".