2742090 has 64 divisors (see below), whose sum is σ = 7257600. Its totient is φ = 658944.

The previous prime is 2742073. The next prime is 2742119. The reversal of 2742090 is 902472.

It is a self number, because there is not a number n which added to its sum of digits gives 2742090.

It is a congruent 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, 30766 + ... + 30854.

It is an arithmetic number, because the mean of its divisors is an integer number (113400).

2^2742090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2742090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3628800).

2742090 is an abundant number, since it is smaller than the sum of its proper divisors (4515510).

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

2742090 is a wasteful number, since it uses less digits than its factorization.

2742090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2742090 is about 1655.9257229719. The cubic root of 2742090 is about 139.9675094671.

The spelling of 2742090 in words is "two million, seven hundred forty-two thousand, ninety".