2315390 has 64 divisors (see below), whose sum is σ = 5419008. Its totient is φ = 691200.

The previous prime is 2315371. The next prime is 2315399. The reversal of 2315390 is 935132.

It is a happy number.

It is a super-2 number, since 2×2315390² = 10722061704200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315399) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23822 + ... + 23918.

It is an arithmetic number, because the mean of its divisors is an integer number (84672).

2^2315390 is an apocalyptic number.

2315390 is an abundant number, since it is smaller than the sum of its proper divisors (3103618).

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

2315390 is a wasteful number, since it uses less digits than its factorization.

2315390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 2315390 is about 1521.6405620251. The cubic root of 2315390 is about 132.2943766848.

The spelling of 2315390 in words is "two million, three hundred fifteen thousand, three hundred ninety".