454378720 has 48 divisors (see below), whose sum is σ = 1136621808. Its totient is φ = 171059200.

The previous prime is 454378667. The next prime is 454378723. The reversal of 454378720 is 27873454.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454378723) 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, 80806 + ... + 86245.

It is an arithmetic number, because the mean of its divisors is an integer number (23679621).

Almost surely, 2^454378720 is an apocalyptic number.

454378720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

454378720 is an abundant number, since it is smaller than the sum of its proper divisors (682243088).

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

454378720 is a wasteful number, since it uses less digits than its factorization.

454378720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167083 (or 167075 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 40.

The square root of 454378720 is about 21316.1610052092. The cubic root of 454378720 is about 768.7869357185.

The spelling of 454378720 in words is "four hundred fifty-four million, three hundred seventy-eight thousand, seven hundred twenty".