455920440 has 32 divisors (see below), whose sum is σ = 1367761680. Its totient is φ = 121578752.

The previous prime is 455920391. The next prime is 455920453. The reversal of 455920440 is 44029554.

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, 1899549 + ... + 1899788.

Almost surely, 2^455920440 is an apocalyptic number.

455920440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

455920440 is an abundant number, since it is smaller than the sum of its proper divisors (911841240).

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

455920440 is a wasteful number, since it uses less digits than its factorization.

455920440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3799351 (or 3799347 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 455920440 is about 21352.2935536209. The cubic root of 455920440 is about 769.6554595070.

Adding to 455920440 its reverse (44029554), we get a palindrome (499949994).

The spelling of 455920440 in words is "four hundred fifty-five million, nine hundred twenty thousand, four hundred forty".