1608361964 has 24 divisors (see below), whose sum is σ = 3169560576. Its totient is φ = 707490000.

The previous prime is 1608361939. The next prime is 1608361999. The reversal of 1608361964 is 4691638061.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 588212 + ... + 590939.

It is an arithmetic number, because the mean of its divisors is an integer number (132065024).

Almost surely, 2^1608361964 is an apocalyptic number.

It is an amenable number.

1608361964 is a deficient number, since it is larger than the sum of its proper divisors (1561198612).

1608361964 is a wasteful number, since it uses less digits than its factorization.

1608361964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179197 (or 1179195 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 1608361964 is about 40104.3883384350. The cubic root of 1608361964 is about 1171.6411002540.

The spelling of 1608361964 in words is "one billion, six hundred eight million, three hundred sixty-one thousand, nine hundred sixty-four".