2520990 has 32 divisors (see below), whose sum is σ = 6723360. Its totient is φ = 672192.

The previous prime is 2520983. The next prime is 2521003. The reversal of 2520990 is 990252.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 16.

It is a congruent number.

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, 4399 + ... + 4938.

It is an arithmetic number, because the mean of its divisors is an integer number (210105).

2^2520990 is an apocalyptic number.

2520990 is an abundant number, since it is smaller than the sum of its proper divisors (4202370).

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

2520990 is a wasteful number, since it uses less digits than its factorization.

2520990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9353 (or 9347 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 2520990 is about 1587.7625767098. The cubic root of 2520990 is about 136.0996602272.

The spelling of 2520990 in words is "two million, five hundred twenty thousand, nine hundred ninety".