455543040 has 144 divisors (see below), whose sum is σ = 1471091328. Its totient is φ = 120127488.

The previous prime is 455542987. The next prime is 455543041. The reversal of 455543040 is 40345554.

It is a super-2 number, since 2×455543040² = 415038922584883200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 455542989 and 455543007.

It is not an unprimeable number, because it can be changed into a prime (455543041) 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, 371869 + ... + 373091.

It is an arithmetic number, because the mean of its divisors is an integer number (10215912).

Almost surely, 2^455543040 is an apocalyptic number.

455543040 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 455543040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (735545664).

455543040 is an abundant number, since it is smaller than the sum of its proper divisors (1015548288).

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

455543040 is a wasteful number, since it uses less digits than its factorization.

455543040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344 (or 1330 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 455543040 is about 21343.4542658868. The cubic root of 455543040 is about 769.4430334422.

Adding to 455543040 its reverse (40345554), we get a palindrome (495888594).

The spelling of 455543040 in words is "four hundred fifty-five million, five hundred forty-three thousand, forty".