1642656052 has 18 divisors (see below), whose sum is σ = 2924221538. Its totient is φ = 807400368.

The previous prime is 1642656011. The next prime is 1642656061. The reversal of 1642656052 is 2506562461.

It can be written as a sum of positive squares in only one way, i.e., 1638144676 + 4511376 = 40474^2 + 2124^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45063 + ... + 72910.

Almost surely, 2^1642656052 is an apocalyptic number.

It is an amenable number.

1642656052 is a deficient number, since it is larger than the sum of its proper divisors (1281565486).

1642656052 is a wasteful number, since it uses less digits than its factorization.

1642656052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118095 (or 118034 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 1642656052 is about 40529.6934604741. The cubic root of 1642656052 is about 1179.9099931347.

The spelling of 1642656052 in words is "one billion, six hundred forty-two million, six hundred fifty-six thousand, fifty-two".