451774540 has 48 divisors (see below), whose sum is σ = 1102054464. Its totient is φ = 152352000.

The previous prime is 451774537. The next prime is 451774559. The reversal of 451774540 is 45477154.

It is a self number, because there is not a number n which added to its sum of digits gives 451774540.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17911 + ... + 34990.

It is an arithmetic number, because the mean of its divisors is an integer number (22959468).

Almost surely, 2^451774540 is an apocalyptic number.

It is an amenable number.

451774540 is an abundant number, since it is smaller than the sum of its proper divisors (650279924).

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

451774540 is a wasteful number, since it uses less digits than its factorization.

451774540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52978 (or 52976 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 37.

The square root of 451774540 is about 21254.9885909167. The cubic root of 451774540 is about 767.3154051066.

The spelling of 451774540 in words is "four hundred fifty-one million, seven hundred seventy-four thousand, five hundred forty".