39742460 has 12 divisors (see below), whose sum is σ = 83459208. Its totient is φ = 15896976.

The previous prime is 39742453. The next prime is 39742501. The reversal of 39742460 is 6424793.

It is a self number, because there is not a number n which added to its sum of digits gives 39742460.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 993542 + ... + 993581.

It is an arithmetic number, because the mean of its divisors is an integer number (6954934).

Almost surely, 2^39742460 is an apocalyptic number.

It is an amenable number.

39742460 is an abundant number, since it is smaller than the sum of its proper divisors (43716748).

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

39742460 is a wasteful number, since it uses less digits than its factorization.

39742460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987132 (or 1987130 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 39742460 is about 6304.1621172048. The cubic root of 39742460 is about 341.2596297604.

The spelling of 39742460 in words is "thirty-nine million, seven hundred forty-two thousand, four hundred sixty".