455043840 has 144 divisors (see below), whose sum is σ = 1464223488. Its totient is φ = 120434688.

The previous prime is 455043793. The next prime is 455043847. The reversal of 455043840 is 48340554.

It is not an unprimeable number, because it can be changed into a prime (455043847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 625557 + ... + 626283.

Almost surely, 2^455043840 is an apocalyptic number.

455043840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 455043840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (732111744).

455043840 is an abundant number, since it is smaller than the sum of its proper divisors (1009179648).

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

455043840 is a wasteful number, since it uses less digits than its factorization.

455043840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914 (or 900 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 455043840 is about 21331.7566083996. The cubic root of 455043840 is about 769.1618698494.

The spelling of 455043840 in words is "four hundred fifty-five million, forty-three thousand, eight hundred forty".