39630976 has 64 divisors (see below), whose sum is σ = 98458560. Its totient is φ = 15436800.

The previous prime is 39630971. The next prime is 39630991. The reversal of 39630976 is 67903693.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×39630976² = 3141228517425152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39630971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7846 + ... + 11866.

It is an arithmetic number, because the mean of its divisors is an integer number (1538415).

Almost surely, 2^39630976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39630976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49229280).

39630976 is an abundant number, since it is smaller than the sum of its proper divisors (58827584).

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

39630976 is a wasteful number, since it uses less digits than its factorization.

39630976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4053 (or 4041 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 43.

The square root of 39630976 is about 6295.3138126705. The cubic root of 39630976 is about 340.9402348512.

The spelling of 39630976 in words is "thirty-nine million, six hundred thirty thousand, nine hundred seventy-six".