29422638 has 36 divisors (see below), whose sum is σ = 74159280. Its totient is φ = 8406216.

The previous prime is 29422609. The next prime is 29422639. The reversal of 29422638 is 83622492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29422639) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 15798 + ... + 17561.

It is an arithmetic number, because the mean of its divisors is an integer number (2059980).

Almost surely, 2^29422638 is an apocalyptic number.

29422638 is an abundant number, since it is smaller than the sum of its proper divisors (44736642).

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

29422638 is a wasteful number, since it uses less digits than its factorization.

29422638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33381 (or 33371 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 29422638 is about 5424.2638210176. The cubic root of 29422638 is about 308.7169935267.

The spelling of 29422638 in words is "twenty-nine million, four hundred twenty-two thousand, six hundred thirty-eight".