2520090 has 24 divisors (see below), whose sum is σ = 6552468. Its totient is φ = 672000.

The previous prime is 2520079. The next prime is 2520121. The reversal of 2520090 is 900252.

It can be written as a sum of positive squares in 2 ways, for example, as 2518569 + 1521 = 1587^2 + 39^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13911 + ... + 14090.

2^2520090 is an apocalyptic number.

2520090 is an abundant number, since it is smaller than the sum of its proper divisors (4032378).

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

2520090 is a wasteful number, since it uses less digits than its factorization.

2520090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28014 (or 28011 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 2520090 is about 1587.4791337211. The cubic root of 2520090 is about 136.0834623217.

The spelling of 2520090 in words is "two million, five hundred twenty thousand, ninety".