1642560604 has 12 divisors (see below), whose sum is σ = 3043568304. Its totient is φ = 772969664.

The previous prime is 1642560599. The next prime is 1642560611. The reversal of 1642560604 is 4060652461.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 1642560604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12077584 + ... + 12077719.

It is an arithmetic number, because the mean of its divisors is an integer number (253630692).

Almost surely, 2^1642560604 is an apocalyptic number.

It is an amenable number.

1642560604 is a deficient number, since it is larger than the sum of its proper divisors (1401007700).

1642560604 is a wasteful number, since it uses less digits than its factorization.

1642560604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24155324 (or 24155322 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 1642560604 is about 40528.5159363133. The cubic root of 1642560604 is about 1179.8871394500.

It can be divided in two parts, 1642560 and 604, that multiplied together give a triangular number (992106240 = T₄₄₅₄₄).

The spelling of 1642560604 in words is "one billion, six hundred forty-two million, five hundred sixty thousand, six hundred four".