2297939540 has 48 divisors (see below), whose sum is σ = 5282109840. Its totient is φ = 834554880.

The previous prime is 2297939533. The next prime is 2297939549. The reversal of 2297939540 is 459397922.

2297939540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 458902084 + 1839037456 = 21422^2 + 42884^2 .

It is a super-2 number, since 2×2297939540² = 10561052258990823200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2297939549) 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, 56585 + ... + 88304.

It is an arithmetic number, because the mean of its divisors is an integer number (110043955).

Almost surely, 2^2297939540 is an apocalyptic number.

2297939540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2297939540 is an abundant number, since it is smaller than the sum of its proper divisors (2984170300).

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

2297939540 is a wasteful number, since it uses less digits than its factorization.

2297939540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144972 (or 144970 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 50.

The square root of 2297939540 is about 47936.8286393666. The cubic root of 2297939540 is about 1319.6118272447.

The spelling of 2297939540 in words is "two billion, two hundred ninety-seven million, nine hundred thirty-nine thousand, five hundred forty".