2765490 has 64 divisors (see below), whose sum is σ = 8176896. Its totient is φ = 582912.

The previous prime is 2765473. The next prime is 2765513. The reversal of 2765490 is 945672.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2224 + ... + 3236.

It is an arithmetic number, because the mean of its divisors is an integer number (127764).

2^2765490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2765490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4088448).

2765490 is an abundant number, since it is smaller than the sum of its proper divisors (5411406).

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

2765490 is a wasteful number, since it uses less digits than its factorization.

2765490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 2765490 is about 1662.9762475754. The cubic root of 2765490 is about 140.3645262283.

The spelling of 2765490 in words is "two million, seven hundred sixty-five thousand, four hundred ninety".