39964401 has 8 divisors (see below), whose sum is σ = 59206560. Its totient is φ = 26642916.

The previous prime is 39964369. The next prime is 39964423. The reversal of 39964401 is 10446993.

39964401 is a `hidden beast` number, since 3 + 9 + 9 + 644 + 0 + 1 = 666.

It is not a de Polignac number, because 39964401 - 2⁵ = 39964369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39964801) 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, 740055 + ... + 740108.

It is an arithmetic number, because the mean of its divisors is an integer number (7400820).

Almost surely, 2^39964401 is an apocalyptic number.

It is an amenable number.

39964401 is a deficient number, since it is larger than the sum of its proper divisors (19242159).

39964401 is a wasteful number, since it uses less digits than its factorization.

39964401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480172 (or 1480166 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 39964401 is about 6321.7403458225. The cubic root of 39964401 is about 341.8937034999.

The spelling of 39964401 in words is "thirty-nine million, nine hundred sixty-four thousand, four hundred one".