2567990 has 8 divisors (see below), whose sum is σ = 4622400. Its totient is φ = 1027192.

The previous prime is 2567987. The next prime is 2568001. The reversal of 2567990 is 997652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128390 + ... + 128409.

It is an arithmetic number, because the mean of its divisors is an integer number (577800).

2^2567990 is an apocalyptic number.

2567990 is a deficient number, since it is larger than the sum of its proper divisors (2054410).

2567990 is a wasteful number, since it uses less digits than its factorization.

2567990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256806.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 2567990 is about 1602.4949297892. The cubic root of 2567990 is about 136.9402477988.

The spelling of 2567990 in words is "two million, five hundred sixty-seven thousand, nine hundred ninety".