1453563840 has 112 divisors (see below), whose sum is σ = 4858024320. Its totient is φ = 367211520.

The previous prime is 1453563829. The next prime is 1453563883. The reversal of 1453563840 is 483653541.

1453563840 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1453563840² = 4225695673911091200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21606 + ... + 58085.

Almost surely, 2^1453563840 is an apocalyptic number.

1453563840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1453563840 is an abundant number, since it is smaller than the sum of its proper divisors (3404460480).

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

1453563840 is a wasteful number, since it uses less digits than its factorization.

1453563840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79730 (or 79720 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 1453563840 is about 38125.6323226252. The cubic root of 1453563840 is about 1132.7777330520. Note that the first 4 decimals are identical.

The spelling of 1453563840 in words is "one billion, four hundred fifty-three million, five hundred sixty-three thousand, eight hundred forty".