2790740 has 12 divisors (see below), whose sum is σ = 5860596. Its totient is φ = 1116288.

The previous prime is 2790721. The next prime is 2790769. The reversal of 2790740 is 470972.

It can be written as a sum of positive squares in 2 ways, for example, as 1567504 + 1223236 = 1252^2 + 1106^2 .

It is a nialpdrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69749 + ... + 69788.

It is an arithmetic number, because the mean of its divisors is an integer number (488383).

2^2790740 is an apocalyptic number.

2790740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2790740 is an abundant number, since it is smaller than the sum of its proper divisors (3069856).

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

2790740 is a wasteful number, since it uses less digits than its factorization.

2790740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139546 (or 139544 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 2790740 is about 1670.5508073686. The cubic root of 2790740 is about 140.7904268844.

The spelling of 2790740 in words is "two million, seven hundred ninety thousand, seven hundred forty".