453534640 has 40 divisors (see below), whose sum is σ = 1135583568. Its totient is φ = 167458560.

The previous prime is 453534611. The next prime is 453534643. The reversal of 453534640 is 46435354.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 453534596 and 453534605.

It is not an unprimeable number, because it can be changed into a prime (453534643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217006 + ... + 219085.

Almost surely, 2^453534640 is an apocalyptic number.

453534640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

453534640 is an abundant number, since it is smaller than the sum of its proper divisors (682048928).

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

453534640 is a wasteful number, since it uses less digits than its factorization.

453534640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436117 (or 436111 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

The square root of 453534640 is about 21296.3527393777. The cubic root of 453534640 is about 768.3105930513.

Adding to 453534640 its reverse (46435354), we get a palindrome (499969994).

The spelling of 453534640 in words is "four hundred fifty-three million, five hundred thirty-four thousand, six hundred forty".