2640792 has 64 divisors (see below), whose sum is σ = 8236800. Its totient is φ = 685440.

The previous prime is 2640779. The next prime is 2640821. The reversal of 2640792 is 2970462.

It is a happy number.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 2¹⁵ + 6⁸ + 4⁸ + 0 + 7⁷ + 9⁴ + 2¹⁵ .

2640792 is a modest number, since divided by 792 gives 264 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1134 + ... + 2562.

It is an arithmetic number, because the mean of its divisors is an integer number (128700).

2^2640792 is an apocalyptic number.

2640792 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2640792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4118400).

2640792 is an abundant number, since it is smaller than the sum of its proper divisors (5596008).

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

2640792 is a wasteful number, since it uses less digits than its factorization.

2640792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456 (or 1452 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 2640792 is about 1625.0513838030. The cubic root of 2640792 is about 138.2222840648. Note that the first 4 decimals are identical.

The spelling of 2640792 in words is "two million, six hundred forty thousand, seven hundred ninety-two".