2798940 has 24 divisors (see below), whose sum is σ = 7837200. Its totient is φ = 746368.

The previous prime is 2798933. The next prime is 2798941. The reversal of 2798940 is 498972.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2798941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23265 + ... + 23384.

It is an arithmetic number, because the mean of its divisors is an integer number (326550).

2^2798940 is an apocalyptic number.

2798940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2798940 is an abundant number, since it is smaller than the sum of its proper divisors (5038260).

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

2798940 is a wasteful number, since it uses less digits than its factorization.

2798940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46661 (or 46659 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 2798940 is about 1673.0032875042. The cubic root of 2798940 is about 140.9281863567.

Subtracting from 2798940 its reverse (498972), we obtain a cube (2299968 = 132³).

The spelling of 2798940 in words is "two million, seven hundred ninety-eight thousand, nine hundred forty".