1648939632 has 40 divisors (see below), whose sum is σ = 4374894096. Its totient is φ = 534790656.

The previous prime is 1648939627. The next prime is 1648939651. The reversal of 1648939632 is 2369398461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462453 + ... + 466004.

Almost surely, 2^1648939632 is an apocalyptic number.

1648939632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1648939632 is an abundant number, since it is smaller than the sum of its proper divisors (2725954464).

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

1648939632 is a wasteful number, since it uses less digits than its factorization.

1648939632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928505 (or 928499 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 51.

The square root of 1648939632 is about 40607.1376977004. The cubic root of 1648939632 is about 1181.4125647995.

The spelling of 1648939632 in words is "one billion, six hundred forty-eight million, nine hundred thirty-nine thousand, six hundred thirty-two".