366405644 has 12 divisors (see below), whose sum is σ = 699501768. Its totient is φ = 166548000.

The previous prime is 366405631. The next prime is 366405649. The reversal of 366405644 is 446504663.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 366405598 and 366405607.

It is not an unprimeable number, because it can be changed into a prime (366405649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4163657 + ... + 4163744.

It is an arithmetic number, because the mean of its divisors is an integer number (58291814).

Almost surely, 2^366405644 is an apocalyptic number.

It is an amenable number.

366405644 is a deficient number, since it is larger than the sum of its proper divisors (333096124).

366405644 is a wasteful number, since it uses less digits than its factorization.

366405644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8327416 (or 8327414 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 38.

The square root of 366405644 is about 19141.7252096043. The cubic root of 366405644 is about 715.5731749659.

The spelling of 366405644 in words is "three hundred sixty-six million, four hundred five thousand, six hundred forty-four".