2043653456 has 30 divisors (see below), whose sum is σ = 4287596670. Its totient is φ = 943223424.

The previous prime is 2043653441. The next prime is 2043653459. The reversal of 2043653456 is 6543563402.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 25847056 + 2017806400 = 5084^2 + 44920^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043653459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 375191 + ... + 380598.

It is an arithmetic number, because the mean of its divisors is an integer number (142919889).

Almost surely, 2^2043653456 is an apocalyptic number.

2043653456 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2043653456 is an abundant number, since it is smaller than the sum of its proper divisors (2243943214).

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

2043653456 is a wasteful number, since it uses less digits than its factorization.

2043653456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755823 (or 755804 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 38.

The square root of 2043653456 is about 45206.7855083725. The cubic root of 2043653456 is about 1269.0218057089.

The spelling of 2043653456 in words is "two billion, forty-three million, six hundred fifty-three thousand, four hundred fifty-six".