1649365604 has 48 divisors (see below), whose sum is σ = 3279830400. Its totient is φ = 721518336.

The previous prime is 1649365603. The next prime is 1649365609. The reversal of 1649365604 is 4065639461.

It is not an unprimeable number, because it can be changed into a prime (1649365603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34424 + ... + 66960.

It is an arithmetic number, because the mean of its divisors is an integer number (68329800).

Almost surely, 2^1649365604 is an apocalyptic number.

It is an amenable number.

1649365604 is a deficient number, since it is larger than the sum of its proper divisors (1630464796).

1649365604 is a wasteful number, since it uses less digits than its factorization.

1649365604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32612 (or 32610 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 44.

The square root of 1649365604 is about 40612.3823974905. The cubic root of 1649365604 is about 1181.5142878168.

The spelling of 1649365604 in words is "one billion, six hundred forty-nine million, three hundred sixty-five thousand, six hundred four".