1989025504 has 24 divisors (see below), whose sum is σ = 3944074680. Its totient is φ = 987355776.

The previous prime is 1989025463. The next prime is 1989025513. The reversal of 1989025504 is 4055209891.

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, 219139 + ... + 228034.

It is an arithmetic number, because the mean of its divisors is an integer number (164336445).

Almost surely, 2^1989025504 is an apocalyptic number.

It is an amenable number.

1989025504 is a deficient number, since it is larger than the sum of its proper divisors (1955049176).

1989025504 is a wasteful number, since it uses less digits than its factorization.

1989025504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447322 (or 447314 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 43.

The square root of 1989025504 is about 44598.4921718212. The cubic root of 1989025504 is about 1257.6123221237.

The spelling of 1989025504 in words is "one billion, nine hundred eighty-nine million, twenty-five thousand, five hundred four".