1632880 has 20 divisors (see below), whose sum is σ = 3796632. Its totient is φ = 653120.

The previous prime is 1632871. The next prime is 1632881. The reversal of 1632880 is 882361.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1632881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10126 + ... + 10285.

2^1632880 is an apocalyptic number.

1632880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1632880 is an abundant number, since it is smaller than the sum of its proper divisors (2163752).

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

1632880 is a wasteful number, since it uses less digits than its factorization.

1632880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20424 (or 20418 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1632880 is about 1277.8419307567. The cubic root of 1632880 is about 117.7564641099.

It can be divided in two parts, 16 and 32880, that added together give a triangular number (32896 = T₂₅₆).

The spelling of 1632880 in words is "one million, six hundred thirty-two thousand, eight hundred eighty".