2992840 has 16 divisors (see below), whose sum is σ = 6733980. Its totient is φ = 1197120.

The previous prime is 2992837. The next prime is 2992841. The reversal of 2992840 is 482992.

2992840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2965284 + 27556 = 1722^2 + 166^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2992796 and 2992805.

It is not an unprimeable number, because it can be changed into a prime (2992841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37371 + ... + 37450.

2^2992840 is an apocalyptic number.

2992840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2992840 is an abundant number, since it is smaller than the sum of its proper divisors (3741140).

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

2992840 is a wasteful number, since it uses less digits than its factorization.

2992840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74832 (or 74828 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 2992840 is about 1729.9826588726. The cubic root of 2992840 is about 144.1101266625.

It can be divided in two parts, 29 and 92840, that multiplied together give a triangular number (2692360 = T₂₃₂₀).

The spelling of 2992840 in words is "two million, nine hundred ninety-two thousand, eight hundred forty".