20432632 has 16 divisors (see below), whose sum is σ = 41794200. Its totient is φ = 9287520.

The previous prime is 20432609. The next prime is 20432663. The reversal of 20432632 is 23623402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116007 + ... + 116182.

Almost surely, 2^20432632 is an apocalyptic number.

20432632 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20432632 is an abundant number, since it is smaller than the sum of its proper divisors (21361568).

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

20432632 is a wasteful number, since it uses less digits than its factorization.

20432632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232206 (or 232202 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 20432632 is about 4520.2468959118. The cubic root of 20432632 is about 273.3850559797.

The spelling of 20432632 in words is "twenty million, four hundred thirty-two thousand, six hundred thirty-two".