455277840 has 40 divisors (see below), whose sum is σ = 1411362048. Its totient is φ = 121407360.

The previous prime is 455277827. The next prime is 455277841. The reversal of 455277840 is 48772554.

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

It is a junction number, because it is equal to n+sod(n) for n = 455277792 and 455277801.

It is not an unprimeable number, because it can be changed into a prime (455277841) 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, 948256 + ... + 948735.

Almost surely, 2^455277840 is an apocalyptic number.

455277840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

455277840 is an abundant number, since it is smaller than the sum of its proper divisors (956084208).

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

455277840 is a wasteful number, since it uses less digits than its factorization.

455277840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897007 (or 1897001 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 42.

The square root of 455277840 is about 21337.2406838373. The cubic root of 455277840 is about 769.2936908735.

The spelling of 455277840 in words is "four hundred fifty-five million, two hundred seventy-seven thousand, eight hundred forty".