39980772 has 36 divisors (see below), whose sum is σ = 108837820. Its totient is φ = 12301632.

The previous prime is 39980767. The next prime is 39980783. The reversal of 39980772 is 27708993.

It can be written as a sum of positive squares in 2 ways, for example, as 2232036 + 37748736 = 1494^2 + 6144^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42247 + ... + 43182.

Almost surely, 2^39980772 is an apocalyptic number.

It is an amenable number.

39980772 is an abundant number, since it is smaller than the sum of its proper divisors (68857048).

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

39980772 is a wasteful number, since it uses less digits than its factorization.

39980772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85452 (or 85447 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 39980772 is about 6323.0350307428. The cubic root of 39980772 is about 341.9403815232.

The spelling of 39980772 in words is "thirty-nine million, nine hundred eighty thousand, seven hundred seventy-two".