404253430 has 24 divisors (see below), whose sum is σ = 846458208. Its totient is φ = 138601008.

The previous prime is 404253407. The next prime is 404253431. The reversal of 404253430 is 34352404.

It is a junction number, because it is equal to n+sod(n) for n = 404253395 and 404253404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404253431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 412014 + ... + 412993.

It is an arithmetic number, because the mean of its divisors is an integer number (35269092).

Almost surely, 2^404253430 is an apocalyptic number.

404253430 is an abundant number, since it is smaller than the sum of its proper divisors (442204778).

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

404253430 is a wasteful number, since it uses less digits than its factorization.

404253430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825028 (or 825021 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 404253430 is about 20106.0545607536. The cubic root of 404253430 is about 739.4087253970.

The spelling of 404253430 in words is "four hundred four million, two hundred fifty-three thousand, four hundred thirty".