421404004332 has 60 divisors (see below), whose sum is σ = 1127252724136. Its totient is φ = 137201299200.

The previous prime is 421404004319. The next prime is 421404004349. The reversal of 421404004332 is 233400404124.

It is a happy number.

421404004332 is a `hidden beast` number, since 4 + 214 + 0 + 400 + 43 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 421404004296 and 421404004305.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15109669 + ... + 15137532.

Almost surely, 2^421404004332 is an apocalyptic number.

It is an amenable number.

421404004332 is an abundant number, since it is smaller than the sum of its proper divisors (705848719804).

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

421404004332 is a wasteful number, since it uses less digits than its factorization.

421404004332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30247260 (or 30247249 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 421404004332 its reverse (233400404124), we get a palindrome (654804408456).

The spelling of 421404004332 in words is "four hundred twenty-one billion, four hundred four million, four thousand, three hundred thirty-two".