451402008 has 16 divisors (see below), whose sum is σ = 1128505080. Its totient is φ = 150467328.

The previous prime is 451401991. The next prime is 451402009. The reversal of 451402008 is 800204154.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 18808417 = 451402008 / (4 + 5 + 1 + 4 + 0 + 2 + 0 + 0 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451402009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9404185 + ... + 9404232.

Almost surely, 2^451402008 is an apocalyptic number.

It is an amenable number.

451402008 is an abundant number, since it is smaller than the sum of its proper divisors (677103072).

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

451402008 is a wasteful number, since it uses less digits than its factorization.

451402008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18808426 (or 18808422 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 451402008 is about 21246.2233820507. The cubic root of 451402008 is about 767.1044384087.

The spelling of 451402008 in words is "four hundred fifty-one million, four hundred two thousand, eight".