2792840 has 16 divisors (see below), whose sum is σ = 6283980. Its totient is φ = 1117120.

The previous prime is 2792833. The next prime is 2792843. The reversal of 2792840 is 482972.

It can be written as a sum of positive squares in 2 ways, for example, as 2540836 + 252004 = 1594^2 + 502^2 .

It is a d-powerful number, because it can be written as 2¹⁷ + 7³ + 9⁶ + 2²¹ + 8⁵ + 4³ + 0 .

It is a junction number, because it is equal to n+sod(n) for n = 2792797 and 2792806.

It is not an unprimeable number, because it can be changed into a prime (2792843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34871 + ... + 34950.

2^2792840 is an apocalyptic number.

2792840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2792840 is an abundant number, since it is smaller than the sum of its proper divisors (3491140).

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

2792840 is a wasteful number, since it uses less digits than its factorization.

2792840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69832 (or 69828 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2792840 is about 1671.1792243802. The cubic root of 2792840 is about 140.8257324267.

The spelling of 2792840 in words is "two million, seven hundred ninety-two thousand, eight hundred forty".