2309732040 has 128 divisors (see below), whose sum is σ = 8639032320. Its totient is φ = 479942400.

The previous prime is 2309732023. The next prime is 2309732063. The reversal of 2309732040 is 402379032.

2309732040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2309731989 and 2309732007.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115746 + ... + 134225.

It is an arithmetic number, because the mean of its divisors is an integer number (67492440).

Almost surely, 2^2309732040 is an apocalyptic number.

2309732040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2309732040 is an abundant number, since it is smaller than the sum of its proper divisors (6329300280).

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

2309732040 is a wasteful number, since it uses less digits than its factorization.

2309732040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250003 (or 249999 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 2309732040 is about 48059.6716593029. The cubic root of 2309732040 is about 1321.8652922066.

The spelling of 2309732040 in words is "two billion, three hundred nine million, seven hundred thirty-two thousand, forty".