455772440 has 32 divisors (see below), whose sum is σ = 1044841680. Its totient is φ = 178868352.

The previous prime is 455772379. The next prime is 455772467. The reversal of 455772440 is 44277554.

It is a junction number, because it is equal to n+sod(n) for n = 455772394 and 455772403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105374 + ... + 109613.

Almost surely, 2^455772440 is an apocalyptic number.

455772440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

455772440 is an abundant number, since it is smaller than the sum of its proper divisors (589069240).

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

455772440 is a wasteful number, since it uses less digits than its factorization.

455772440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215051 (or 215047 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 38.

The square root of 455772440 is about 21348.8276024704. The cubic root of 455772440 is about 769.5721691447.

The spelling of 455772440 in words is "four hundred fifty-five million, seven hundred seventy-two thousand, four hundred forty".