2752440 has 32 divisors (see below), whose sum is σ = 8257680. Its totient is φ = 733952.

The previous prime is 2752423. The next prime is 2752447. The reversal of 2752440 is 442572.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2752440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2752447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11349 + ... + 11588.

2^2752440 is an apocalyptic number.

2752440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2752440 is an abundant number, since it is smaller than the sum of its proper divisors (5505240).

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

2752440 is a wasteful number, since it uses less digits than its factorization.

2752440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22951 (or 22947 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 2752440 is about 1659.0479197419. The cubic root of 2752440 is about 140.1433905017.

The spelling of 2752440 in words is "two million, seven hundred fifty-two thousand, four hundred forty".