2306573440 has 32 divisors (see below), whose sum is σ = 5514153660. Its totient is φ = 922629120.

The previous prime is 2306573431. The next prime is 2306573443. The reversal of 2306573440 is 443756032.

It can be written as a sum of positive squares in 2 ways, for example, as 2152217664 + 154355776 = 46392^2 + 12424^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×2306573440² = 10640562068226867200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2306573396 and 2306573405.

It is not an unprimeable number, because it can be changed into a prime (2306573443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1801371 + ... + 1802650.

Almost surely, 2^2306573440 is an apocalyptic number.

2306573440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2306573440 is an abundant number, since it is smaller than the sum of its proper divisors (3207580220).

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

2306573440 is an equidigital number, since it uses as much as digits as its factorization.

2306573440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3604040 (or 3604028 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 34.

The square root of 2306573440 is about 48026.7991854548. The cubic root of 2306573440 is about 1321.2624591612.

The spelling of 2306573440 in words is "two billion, three hundred six million, five hundred seventy-three thousand, four hundred forty".