39290442 has 16 divisors (see below), whose sum is σ = 82716960. Its totient is φ = 12407472.

The previous prime is 39290441. The next prime is 39290443. The reversal of 39290442 is 24409293.

It is an interprime number because it is at equal distance from previous prime (39290441) and next prime (39290443).

It is not an unprimeable number, because it can be changed into a prime (39290441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172213 + ... + 172440.

It is an arithmetic number, because the mean of its divisors is an integer number (5169810).

Almost surely, 2^39290442 is an apocalyptic number.

39290442 is an abundant number, since it is smaller than the sum of its proper divisors (43426518).

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

39290442 is a wasteful number, since it uses less digits than its factorization.

39290442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344677.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 39290442 is about 6268.2088350660. The cubic root of 39290442 is about 339.9609009249.

The spelling of 39290442 in words is "thirty-nine million, two hundred ninety thousand, four hundred forty-two".