29972422 has 4 divisors (see below), whose sum is σ = 44958636. Its totient is φ = 14986210.

The previous prime is 29972389. The next prime is 29972477. The reversal of 29972422 is 22427992.

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, 7493104 + ... + 7493107.

It is an arithmetic number, because the mean of its divisors is an integer number (11239659).

Almost surely, 2^29972422 is an apocalyptic number.

29972422 is a deficient number, since it is larger than the sum of its proper divisors (14986214).

29972422 is a wasteful number, since it uses less digits than its factorization.

29972422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14986213.

The product of its digits is 36288, while the sum is 37.

The square root of 29972422 is about 5474.7074807701. The cubic root of 29972422 is about 310.6280088963.

The spelling of 29972422 in words is "twenty-nine million, nine hundred seventy-two thousand, four hundred twenty-two".