2567994 has 64 divisors (see below), whose sum is σ = 6265728. Its totient is φ = 691200.

The previous prime is 2567987. The next prime is 2568001. The reversal of 2567994 is 4997652.

It is an interprime number because it is at equal distance from previous prime (2567987) and next prime (2568001).

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 31 ways as a sum of consecutive naturals, for example, 35142 + ... + 35214.

It is an arithmetic number, because the mean of its divisors is an integer number (97902).

2^2567994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2567994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3132864).

2567994 is an abundant number, since it is smaller than the sum of its proper divisors (3697734).

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

2567994 is a wasteful number, since it uses less digits than its factorization.

2567994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143.

The product of its digits is 136080, while the sum is 42.

The square root of 2567994 is about 1602.4961778426. The cubic root of 2567994 is about 136.9403188999.

The spelling of 2567994 in words is "two million, five hundred sixty-seven thousand, nine hundred ninety-four".