1632263640 has 64 divisors (see below), whose sum is σ = 5596335360. Its totient is φ = 373088640.

The previous prime is 1632263639. The next prime is 1632263651. The reversal of 1632263640 is 463622361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 970746 + ... + 972425.

It is an arithmetic number, because the mean of its divisors is an integer number (87442740).

Almost surely, 2^1632263640 is an apocalyptic number.

1632263640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1632263640 is an abundant number, since it is smaller than the sum of its proper divisors (3964071720).

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

1632263640 is a wasteful number, since it uses less digits than its factorization.

1632263640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1943192 (or 1943188 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 1632263640 is about 40401.2826529060. The cubic root of 1632263640 is about 1177.4164581170.

The spelling of 1632263640 in words is "one billion, six hundred thirty-two million, two hundred sixty-three thousand, six hundred forty".