2504340 has 36 divisors (see below), whose sum is σ = 7597044. Its totient is φ = 667776.

The previous prime is 2504329. The next prime is 2504347. The reversal of 2504340 is 434052.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1258884 + 1245456 = 1122^2 + 1116^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2504347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6777 + ... + 7136.

It is an arithmetic number, because the mean of its divisors is an integer number (211029).

2^2504340 is an apocalyptic number.

2504340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2504340 is an abundant number, since it is smaller than the sum of its proper divisors (5092704).

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

2504340 is a wasteful number, since it uses less digits than its factorization.

2504340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13928 (or 13923 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 2504340 is about 1582.5106634712. The cubic root of 2504340 is about 135.7993725764.

Adding to 2504340 its reverse (434052), we get a palindrome (2938392).

The spelling of 2504340 in words is "two million, five hundred four thousand, three hundred forty".