455121040 has 40 divisors (see below), whose sum is σ = 1154354688. Its totient is φ = 165498240.

The previous prime is 455121031. The next prime is 455121067. The reversal of 455121040 is 40121554.

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

It is a super-2 number, since 2×455121040² = 414270322101363200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 257712 + ... + 259471.

Almost surely, 2^455121040 is an apocalyptic number.

455121040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

455121040 is an abundant number, since it is smaller than the sum of its proper divisors (699233648).

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

455121040 is a wasteful number, since it uses less digits than its factorization.

455121040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517207 (or 517201 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 455121040 is about 21333.5660403975. The cubic root of 455121040 is about 769.2053645148.

Adding to 455121040 its reverse (40121554), we get a palindrome (495242594).

The spelling of 455121040 in words is "four hundred fifty-five million, one hundred twenty-one thousand, forty".