2531490 has 32 divisors (see below), whose sum is σ = 6543936. Its totient is φ = 623040.

The previous prime is 2531489. The next prime is 2531519. The reversal of 2531490 is 941352.

It is a self number, because there is not a number n which added to its sum of digits gives 2531490.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2856 + ... + 3635.

It is an arithmetic number, because the mean of its divisors is an integer number (204498).

2^2531490 is an apocalyptic number.

2531490 is an abundant number, since it is smaller than the sum of its proper divisors (4012446).

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

2531490 is a wasteful number, since it uses less digits than its factorization.

2531490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6514.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 2531490 is about 1591.0656806053. The cubic root of 2531490 is about 136.2883515751.

The spelling of 2531490 in words is "two million, five hundred thirty-one thousand, four hundred ninety".