29979742 has 16 divisors (see below), whose sum is σ = 48690432. Its totient is φ = 13762080.

The previous prime is 29979737. The next prime is 29979769. The reversal of 29979742 is 24797992.

It is a happy number.

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, 1948 + ... + 7984.

It is an arithmetic number, because the mean of its divisors is an integer number (3043152).

Almost surely, 2^29979742 is an apocalyptic number.

29979742 is a deficient number, since it is larger than the sum of its proper divisors (18710690).

29979742 is a wasteful number, since it uses less digits than its factorization.

29979742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6243.

The product of its digits is 571536, while the sum is 49.

The square root of 29979742 is about 5475.3759688263. The cubic root of 29979742 is about 310.6532944955.

The spelling of 29979742 in words is "twenty-nine million, nine hundred seventy-nine thousand, seven hundred forty-two".