2316137840 has 80 divisors (see below), whose sum is σ = 5563759968. Its totient is φ = 896007168.

The previous prime is 2316137827. The next prime is 2316137843. The reversal of 2316137840 is 487316132.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 2316137840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2316137843) 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, 509819 + ... + 514341.

Almost surely, 2^2316137840 is an apocalyptic number.

2316137840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2316137840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2781879984).

2316137840 is an abundant number, since it is smaller than the sum of its proper divisors (3247622128).

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

2316137840 is a wasteful number, since it uses less digits than its factorization.

2316137840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4746 (or 4740 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 2316137840 is about 48126.2697494830. The cubic root of 2316137840 is about 1323.0861825634.

The spelling of 2316137840 in words is "two billion, three hundred sixteen million, one hundred thirty-seven thousand, eight hundred forty".