1632406680 has 96 divisors (see below), whose sum is σ = 5476498560. Its totient is φ = 421263360.

The previous prime is 1632406651. The next prime is 1632406681. The reversal of 1632406680 is 866042361.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1632406681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61977 + ... + 84296.

It is an arithmetic number, because the mean of its divisors is an integer number (57046860).

Almost surely, 2^1632406680 is an apocalyptic number.

1632406680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1632406680 is an abundant number, since it is smaller than the sum of its proper divisors (3844091880).

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

1632406680 is a wasteful number, since it uses less digits than its factorization.

1632406680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146321 (or 146314 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 1632406680 is about 40403.0528549514. The cubic root of 1632406680 is about 1177.4508505862.

The spelling of 1632406680 in words is "one billion, six hundred thirty-two million, four hundred six thousand, six hundred eighty".