39704242 has 16 divisors (see below), whose sum is σ = 61899264. Its totient is φ = 19080000.

The previous prime is 39704209. The next prime is 39704263. The reversal of 39704242 is 24240793.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 7242 + ... + 11482.

It is an arithmetic number, because the mean of its divisors is an integer number (3868704).

Almost surely, 2^39704242 is an apocalyptic number.

39704242 is a deficient number, since it is larger than the sum of its proper divisors (22195022).

39704242 is a wasteful number, since it uses less digits than its factorization.

39704242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4425.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 39704242 is about 6301.1302160803. The cubic root of 39704242 is about 341.1502048664.

The spelling of 39704242 in words is "thirty-nine million, seven hundred four thousand, two hundred forty-two".