32403420 has 72 divisors (see below), whose sum is σ = 112336224. Its totient is φ = 7406208.

The previous prime is 32403409. The next prime is 32403421. The reversal of 32403420 is 2430423.

32403420 is a `hidden beast` number, since 3 + 240 + 3 + 420 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 32403393 and 32403402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32403421) 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, 11599 + ... + 14118.

Almost surely, 2^32403420 is an apocalyptic number.

32403420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32403420 is an abundant number, since it is smaller than the sum of its proper divisors (79932804).

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

32403420 is a wasteful number, since it uses less digits than its factorization.

32403420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25739 (or 25734 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 32403420 is about 5692.4001967536. The cubic root of 32403420 is about 318.8087873117.

Adding to 32403420 its reverse (2430423), we get a palindrome (34833843).

It can be divided in two parts, 32403 and 420, that added together give a palindrome (32823).

The spelling of 32403420 in words is "thirty-two million, four hundred three thousand, four hundred twenty".