1872641604 has 12 divisors (see below), whose sum is σ = 4369497104. Its totient is φ = 624213864.

The previous prime is 1872641593. The next prime is 1872641609. The reversal of 1872641604 is 4061462781.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1872641609) 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, 78026722 + ... + 78026745.

Almost surely, 2^1872641604 is an apocalyptic number.

It is an amenable number.

1872641604 is an abundant number, since it is smaller than the sum of its proper divisors (2496855500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1872641604 is a wasteful number, since it uses less digits than its factorization.

1872641604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156053474 (or 156053472 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 1872641604 is about 43274.0292092151. The cubic root of 1872641604 is about 1232.5888153874.

The spelling of 1872641604 in words is "one billion, eight hundred seventy-two million, six hundred forty-one thousand, six hundred four".