453860640 has 72 divisors (see below), whose sum is σ = 1548804348. Its totient is φ = 121029120.

The previous prime is 453860621. The next prime is 453860651. The reversal of 453860640 is 46068354.

453860640 is a `hidden beast` number, since 4 + 5 + 3 + 8 + 6 + 0 + 640 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 452668176 + 1192464 = 21276^2 + 1092^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 453860595 and 453860604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156151 + ... + 159030.

Almost surely, 2^453860640 is an apocalyptic number.

453860640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

453860640 is an abundant number, since it is smaller than the sum of its proper divisors (1094943708).

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

453860640 is a wasteful number, since it uses less digits than its factorization.

453860640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315202 (or 315191 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 453860640 is about 21304.0052572280. The cubic root of 453860640 is about 768.4946357850.

The spelling of 453860640 in words is "four hundred fifty-three million, eight hundred sixty thousand, six hundred forty".