220400632 has 8 divisors (see below), whose sum is σ = 413251200. Its totient is φ = 110200312.

The previous prime is 220400629. The next prime is 220400701. The reversal of 220400632 is 236004022.

220400632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13775032 + ... + 13775047.

It is an arithmetic number, because the mean of its divisors is an integer number (51656400).

Almost surely, 2^220400632 is an apocalyptic number.

It is an amenable number.

220400632 is a deficient number, since it is larger than the sum of its proper divisors (192850568).

220400632 is a wasteful number, since it uses less digits than its factorization.

220400632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27550085 (or 27550081 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 220400632 is about 14845.8961332754. The cubic root of 220400632 is about 604.0472968533.

Adding to 220400632 its reverse (236004022), we get a palindrome (456404654).

The spelling of 220400632 in words is "two hundred twenty million, four hundred thousand, six hundred thirty-two".