2453240 has 16 divisors (see below), whose sum is σ = 5519880. Its totient is φ = 981280.

The previous prime is 2453233. The next prime is 2453251. The reversal of 2453240 is 423542.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30626 + ... + 30705.

2^2453240 is an apocalyptic number.

2453240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2453240 is an abundant number, since it is smaller than the sum of its proper divisors (3066640).

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

2453240 is a wasteful number, since it uses less digits than its factorization.

2453240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61342 (or 61338 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 2453240 is about 1566.2822223341. The cubic root of 2453240 is about 134.8693752498.

Adding to 2453240 its reverse (423542), we get a palindrome (2876782).

The spelling of 2453240 in words is "two million, four hundred fifty-three thousand, two hundred forty".