2492720 has 20 divisors (see below), whose sum is σ = 5795760. Its totient is φ = 997056.

The previous prime is 2492719. The next prime is 2492729. The reversal of 2492720 is 272942.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2492720.

It is not an unprimeable number, because it can be changed into a prime (2492729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15500 + ... + 15659.

It is an arithmetic number, because the mean of its divisors is an integer number (289788).

2^2492720 is an apocalyptic number.

2492720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2492720 is an abundant number, since it is smaller than the sum of its proper divisors (3303040).

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

2492720 is a wasteful number, since it uses less digits than its factorization.

2492720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31172 (or 31166 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 2492720 is about 1578.8350135464. The cubic root of 2492720 is about 135.5890130121.

The spelling of 2492720 in words is "two million, four hundred ninety-two thousand, seven hundred twenty".