39157642 has 8 divisors (see below), whose sum is σ = 58763556. Its totient is φ = 19569792.

The previous prime is 39157637. The next prime is 39157663. The reversal of 39157642 is 24675193.

It can be written as a sum of positive squares in 2 ways, for example, as 29909961 + 9247681 = 5469^2 + 3041^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4528 + ... + 9940.

Almost surely, 2^39157642 is an apocalyptic number.

39157642 is a deficient number, since it is larger than the sum of its proper divisors (19605914).

39157642 is a wasteful number, since it uses less digits than its factorization.

39157642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9032.

The product of its digits is 45360, while the sum is 37.

The square root of 39157642 is about 6257.6067310115. The cubic root of 39157642 is about 339.5774508556.

The spelling of 39157642 in words is "thirty-nine million, one hundred fifty-seven thousand, six hundred forty-two".