2992440 has 64 divisors (see below), whose sum is σ = 9797760. Its totient is φ = 725120.

The previous prime is 2992417. The next prime is 2992453. The reversal of 2992440 is 442992.

2992440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2992398 and 2992407.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 187 + ... + 2453.

It is an arithmetic number, because the mean of its divisors is an integer number (153090).

2^2992440 is an apocalyptic number.

2992440 is a gapful number since it is divisible by the number (20) 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 2992440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4898880).

2992440 is an abundant number, since it is smaller than the sum of its proper divisors (6805320).

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

2992440 is a wasteful number, since it uses less digits than its factorization.

2992440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292 (or 2288 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 2992440 is about 1729.8670469143. The cubic root of 2992440 is about 144.1037061590.

The spelling of 2992440 in words is "two million, nine hundred ninety-two thousand, four hundred forty".