1632442440 has 32 divisors (see below), whose sum is σ = 4897327680. Its totient is φ = 435317952.

The previous prime is 1632442403. The next prime is 1632442447. The reversal of 1632442440 is 442442361.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1632442398 and 1632442407.

It is not an unprimeable number, because it can be changed into a prime (1632442447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6801724 + ... + 6801963.

It is an arithmetic number, because the mean of its divisors is an integer number (153041490).

Almost surely, 2^1632442440 is an apocalyptic number.

1632442440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1632442440 is an abundant number, since it is smaller than the sum of its proper divisors (3264885240).

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

1632442440 is a wasteful number, since it uses less digits than its factorization.

1632442440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13603701 (or 13603697 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 1632442440 is about 40403.4953933444. The cubic root of 1632442440 is about 1177.4594483896.

The spelling of 1632442440 in words is "one billion, six hundred thirty-two million, four hundred forty-two thousand, four hundred forty".