39965274 has 12 divisors (see below), whose sum is σ = 86591466. Its totient is φ = 13321752.

The previous prime is 39965273. The next prime is 39965279. The reversal of 39965274 is 47256993.

It is a happy number.

39965274 is a `hidden beast` number, since 39 + 96 + 527 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 31304025 + 8661249 = 5595^2 + 2943^2 .

It is not an unprimeable number, because it can be changed into a prime (39965273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1110129 + ... + 1110164.

Almost surely, 2^39965274 is an apocalyptic number.

39965274 is an abundant number, since it is smaller than the sum of its proper divisors (46626192).

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

39965274 is a wasteful number, since it uses less digits than its factorization.

39965274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220301 (or 2220298 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 39965274 is about 6321.8093928875. The cubic root of 39965274 is about 341.8961929740.

The spelling of 39965274 in words is "thirty-nine million, nine hundred sixty-five thousand, two hundred seventy-four".