39946064 has 10 divisors (see below), whose sum is σ = 77395530. Its totient is φ = 19973024.

The previous prime is 39946061. The next prime is 39946103. The reversal of 39946064 is 46064993.

It can be written as a sum of positive squares in only one way, i.e., 24010000 + 15936064 = 4900^2 + 3992^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39946061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1248299 + ... + 1248330.

It is an arithmetic number, because the mean of its divisors is an integer number (7739553).

Almost surely, 2^39946064 is an apocalyptic number.

It is an amenable number.

39946064 is a deficient number, since it is larger than the sum of its proper divisors (37449466).

39946064 is a wasteful number, since it uses less digits than its factorization.

39946064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496637 (or 2496631 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 39946064 is about 6320.2898667704. The cubic root of 39946064 is about 341.8414047558.

The spelling of 39946064 in words is "thirty-nine million, nine hundred forty-six thousand, sixty-four".