453657940 has 12 divisors (see below), whose sum is σ = 952681716. Its totient is φ = 181463168.

The previous prime is 453657929. The next prime is 453657943. The reversal of 453657940 is 49756354.

It can be written as a sum of positive squares in 2 ways, for example, as 92505924 + 361152016 = 9618^2 + 19004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453657943) 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, 11341429 + ... + 11341468.

It is an arithmetic number, because the mean of its divisors is an integer number (79390143).

Almost surely, 2^453657940 is an apocalyptic number.

It is an amenable number.

453657940 is an abundant number, since it is smaller than the sum of its proper divisors (499023776).

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

453657940 is a wasteful number, since it uses less digits than its factorization.

453657940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22682906 (or 22682904 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 43.

The square root of 453657940 is about 21299.2474045446. The cubic root of 453657940 is about 768.3802122191.

The spelling of 453657940 in words is "four hundred fifty-three million, six hundred fifty-seven thousand, nine hundred forty".