39980284 has 12 divisors (see below), whose sum is σ = 70246008. Its totient is φ = 19910000.

The previous prime is 39980257. The next prime is 39980321. The reversal of 39980284 is 48208993.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 39980284.

It is a congruent 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, 18907 + ... + 20914.

It is an arithmetic number, because the mean of its divisors is an integer number (5853834).

Almost surely, 2^39980284 is an apocalyptic number.

It is an amenable number.

39980284 is a deficient number, since it is larger than the sum of its proper divisors (30265724).

39980284 is a wasteful number, since it uses less digits than its factorization.

39980284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40076 (or 40074 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 39980284 is about 6322.9964415615. The cubic root of 39980284 is about 341.9389902912.

The spelling of 39980284 in words is "thirty-nine million, nine hundred eighty thousand, two hundred eighty-four".