2611290 has 64 divisors (see below), whose sum is σ = 7039872. Its totient is φ = 614400.

The previous prime is 2611277. The next prime is 2611291. The reversal of 2611290 is 921162.

It is not an unprimeable number, because it can be changed into a prime (2611291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13434 + ... + 13626.

It is an arithmetic number, because the mean of its divisors is an integer number (109998).

2^2611290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2611290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3519936).

2611290 is an abundant number, since it is smaller than the sum of its proper divisors (4428582).

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

2611290 is a wasteful number, since it uses less digits than its factorization.

2611290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 2611290 is about 1615.9486377976. The cubic root of 2611290 is about 137.7056317177.

It can be divided in two parts, 261 and 1290, that added together give a palindrome (1551).

The spelling of 2611290 in words is "two million, six hundred eleven thousand, two hundred ninety".