32406664 has 8 divisors (see below), whose sum is σ = 60762510. Its totient is φ = 16203328.

The previous prime is 32406643. The next prime is 32406683. The reversal of 32406664 is 46660423.

It can be written as a sum of positive squares in only one way, i.e., 18404100 + 14002564 = 4290^2 + 3742^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2025409 + ... + 2025424.

Almost surely, 2^32406664 is an apocalyptic number.

It is an amenable number.

32406664 is a deficient number, since it is larger than the sum of its proper divisors (28355846).

32406664 is a wasteful number, since it uses less digits than its factorization.

32406664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4050839 (or 4050835 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 32406664 is about 5692.6851309378. The cubic root of 32406664 is about 318.8194259130.

The spelling of 32406664 in words is "thirty-two million, four hundred six thousand, six hundred sixty-four".