39987234 has 36 divisors (see below), whose sum is σ = 100786374. Its totient is φ = 11424672.

The previous prime is 39987223. The next prime is 39987251. The reversal of 39987234 is 43278993.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 30969225 + 9018009 = 5565^2 + 3003^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 39987234.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 21787 + ... + 23550.

Almost surely, 2^39987234 is an apocalyptic number.

39987234 is an abundant number, since it is smaller than the sum of its proper divisors (60799140).

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

39987234 is a wasteful number, since it uses less digits than its factorization.

39987234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45359 (or 45349 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 39987234 is about 6323.5459988839. The cubic root of 39987234 is about 341.9588028759.

The spelling of 39987234 in words is "thirty-nine million, nine hundred eighty-seven thousand, two hundred thirty-four".