451225674440 has 32 divisors (see below), whose sum is σ = 1015424183160. Its totient is φ = 180460684800.

The previous prime is 451225674437. The next prime is 451225674481. The reversal of 451225674440 is 44476522154.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 198439957156 + 252785717284 = 445466^2 + 502778^2 .

It is a junction number, because it is equal to n+sod(n) for n = 451225674391 and 451225674400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 676631 + ... + 1166310.

Almost surely, 2^451225674440 is an apocalyptic number.

451225674440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

451225674440 is an abundant number, since it is smaller than the sum of its proper divisors (564198508720).

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

451225674440 is a wasteful number, since it uses less digits than its factorization.

451225674440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849073 (or 1849069 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 44.

The spelling of 451225674440 in words is "four hundred fifty-one billion, two hundred twenty-five million, six hundred seventy-four thousand, four hundred forty".