2518890 has 64 divisors (see below), whose sum is σ = 6998400. Its totient is φ = 573440.

The previous prime is 2518877. The next prime is 2518903. The reversal of 2518890 is 988152.

It is a happy number.

2518890 is a nontrivial binomial coefficient, being equal to C(2245, 2).

It is an interprime number because it is at equal distance from previous prime (2518877) and next prime (2518903).

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 5386 + ... + 5834.

It is an arithmetic number, because the mean of its divisors is an integer number (109350).

2^2518890 is an apocalyptic number.

2518890 is the 2244-th triangular number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2518890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3499200).

2518890 is an abundant number, since it is smaller than the sum of its proper divisors (4479510).

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

2518890 is a wasteful number, since it uses less digits than its factorization.

2518890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 2518890 is about 1587.1011309932. The cubic root of 2518890 is about 136.0618591142.

It can be divided in two parts, 25 and 18890, that added together give a triangular number (18915 = T₁₉₄).

The spelling of 2518890 in words is "two million, five hundred eighteen thousand, eight hundred ninety".