1902676644 has 72 divisors (see below), whose sum is σ = 5522942880. Its totient is φ = 546220800.

The previous prime is 1902676613. The next prime is 1902676691. The reversal of 1902676644 is 4466762091.

It is a self number, because there is not a number n which added to its sum of digits gives 1902676644.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118917 + ... + 133964.

It is an arithmetic number, because the mean of its divisors is an integer number (76707540).

Almost surely, 2^1902676644 is an apocalyptic number.

It is an amenable number.

1902676644 is an abundant number, since it is smaller than the sum of its proper divisors (3620266236).

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

1902676644 is a wasteful number, since it uses less digits than its factorization.

1902676644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252921 (or 252916 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 1902676644 is about 43619.6818420309. The cubic root of 1902676644 is about 1239.1436690821.

The spelling of 1902676644 in words is "one billion, nine hundred two million, six hundred seventy-six thousand, six hundred forty-four".