39497138 has 8 divisors (see below), whose sum is σ = 59340060. Its totient is φ = 19717120.

The previous prime is 39497123. The next prime is 39497147. The reversal of 39497138 is 83179493.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 32752729 + 6744409 = 5723^2 + 2597^2 .

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

It is a Curzon number.

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, 14123 + ... + 16686.

Almost surely, 2^39497138 is an apocalyptic number.

39497138 is a deficient number, since it is larger than the sum of its proper divisors (19842922).

39497138 is a wasteful number, since it uses less digits than its factorization.

39497138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31452.

The product of its digits is 163296, while the sum is 44.

The square root of 39497138 is about 6284.6748523691. The cubic root of 39497138 is about 340.5560049130.

The spelling of 39497138 in words is "thirty-nine million, four hundred ninety-seven thousand, one hundred thirty-eight".