2315421040 has 80 divisors (see below), whose sum is σ = 5675761728. Its totient is φ = 876699648.

The previous prime is 2315421011. The next prime is 2315421047. The reversal of 2315421040 is 401245132.

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

It is a super-2 number, since 2×2315421040² = 10722349184949363200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315421047) 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, 171994 + ... + 184966.

Almost surely, 2^2315421040 is an apocalyptic number.

2315421040 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 2315421040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2837880864).

2315421040 is an abundant number, since it is smaller than the sum of its proper divisors (3360340688).

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

2315421040 is a wasteful number, since it uses less digits than its factorization.

2315421040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13106 (or 13100 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2315421040 is about 48118.8220969716. The cubic root of 2315421040 is about 1322.9496785937.

Adding to 2315421040 its reverse (401245132), we get a palindrome (2716666172).

The spelling of 2315421040 in words is "two billion, three hundred fifteen million, four hundred twenty-one thousand, forty".