20467632 has 30 divisors (see below), whose sum is σ = 52955812. Its totient is φ = 6812096.

The previous prime is 20467621. The next prime is 20467639. The reversal of 20467632 is 23676402.

It is a self number, because there is not a number n which added to its sum of digits gives 20467632.

It is not an unprimeable number, because it can be changed into a prime (20467639) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31018 + ... + 31670.

Almost surely, 2^20467632 is an apocalyptic number.

It is an amenable number.

20467632 is an abundant number, since it is smaller than the sum of its proper divisors (32488180).

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

20467632 is an frugal number, since it uses more digits than its factorization.

20467632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 20467632 is about 4524.1167093699. The cubic root of 20467632 is about 273.5410649025.

The spelling of 20467632 in words is "twenty million, four hundred sixty-seven thousand, six hundred thirty-two".