2497780 has 24 divisors (see below), whose sum is σ = 5322240. Its totient is φ = 984480.

The previous prime is 2497771. The next prime is 2497801. The reversal of 2497780 is 877942.

It is a happy number.

2497780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 11.

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 7 ways as a sum of consecutive naturals, for example, 541 + ... + 2299.

It is an arithmetic number, because the mean of its divisors is an integer number (221760).

2^2497780 is an apocalyptic number.

2497780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2497780 is an abundant number, since it is smaller than the sum of its proper divisors (2824460).

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

2497780 is a wasteful number, since it uses less digits than its factorization.

2497780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839 (or 1837 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 2497780 is about 1580.4366485247. The cubic root of 2497780 is about 135.6806955518.

The spelling of 2497780 in words is "two million, four hundred ninety-seven thousand, seven hundred eighty".