2531394 has 24 divisors (see below), whose sum is σ = 5569200. Its totient is φ = 830808.

The previous prime is 2531393. The next prime is 2531413. The reversal of 2531394 is 4931352.

It is not an unprimeable number, because it can be changed into a prime (2531393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157 + ... + 2255.

It is an arithmetic number, because the mean of its divisors is an integer number (232050).

2^2531394 is an apocalyptic number.

2531394 is an abundant number, since it is smaller than the sum of its proper divisors (3037806).

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

2531394 is a wasteful number, since it uses less digits than its factorization.

2531394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174 (or 2171 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 2531394 is about 1591.0355118601. The cubic root of 2531394 is about 136.2866287627.

The spelling of 2531394 in words is "two million, five hundred thirty-one thousand, three hundred ninety-four".