451012404 has 24 divisors (see below), whose sum is σ = 1072219680. Its totient is φ = 147500704.

The previous prime is 451012403. The next prime is 451012411. The reversal of 451012404 is 404210154.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451012403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353934 + ... + 355205.

It is an arithmetic number, because the mean of its divisors is an integer number (44675820).

Almost surely, 2^451012404 is an apocalyptic number.

It is an amenable number.

451012404 is an abundant number, since it is smaller than the sum of its proper divisors (621207276).

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

451012404 is a wasteful number, since it uses less digits than its factorization.

451012404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709199 (or 709197 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 451012404 is about 21237.0526203614. The cubic root of 451012404 is about 766.8836795453.

Adding to 451012404 its reverse (404210154), we get a palindrome (855222558).

The spelling of 451012404 in words is "four hundred fifty-one million, twelve thousand, four hundred four".