2308997940 has 48 divisors (see below), whose sum is σ = 6525634752. Its totient is φ = 609976576.

The previous prime is 2308997917. The next prime is 2308997941. The reversal of 2308997940 is 497998032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2308997941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173409 + ... + 186248.

It is an arithmetic number, because the mean of its divisors is an integer number (135950724).

Almost surely, 2^2308997940 is an apocalyptic number.

2308997940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2308997940 is an abundant number, since it is smaller than the sum of its proper divisors (4216636812).

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

2308997940 is a wasteful number, since it uses less digits than its factorization.

2308997940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359776 (or 359774 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 2308997940 is about 48052.0336718437. The cubic root of 2308997940 is about 1321.7252349594.

The spelling of 2308997940 in words is "two billion, three hundred eight million, nine hundred ninety-seven thousand, nine hundred forty".