423457804 has 72 divisors (see below), whose sum is σ = 946127952. Its totient is φ = 163981440.

The previous prime is 423457789. The next prime is 423457813. The reversal of 423457804 is 408754324.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 424234 + ... + 425230.

It is an arithmetic number, because the mean of its divisors is an integer number (13140666).

Almost surely, 2^423457804 is an apocalyptic number.

423457804 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423457804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473063976).

423457804 is an abundant number, since it is smaller than the sum of its proper divisors (522670148).

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

423457804 is a wasteful number, since it uses less digits than its factorization.

423457804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223 (or 1214 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 37.

The square root of 423457804 is about 20578.0903875943. The cubic root of 423457804 is about 750.9367873447.

Adding to 423457804 its product of nonzero digits (107520), we get a palindrome (423565324).

The spelling of 423457804 in words is "four hundred twenty-three million, four hundred fifty-seven thousand, eight hundred four".