2972440 has 16 divisors (see below), whose sum is σ = 6688080. Its totient is φ = 1188960.

The previous prime is 2972429. The next prime is 2972447. The reversal of 2972440 is 442792.

2972440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2972399 and 2972408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2972447) 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, 37116 + ... + 37195.

It is an arithmetic number, because the mean of its divisors is an integer number (418005).

2^2972440 is an apocalyptic number.

2972440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2972440 is an abundant number, since it is smaller than the sum of its proper divisors (3715640).

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

2972440 is a wasteful number, since it uses less digits than its factorization.

2972440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74322 (or 74318 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2972440 is about 1724.0765644251. The cubic root of 2972440 is about 143.7819487904.

The spelling of 2972440 in words is "two million, nine hundred seventy-two thousand, four hundred forty".