2440720 has 20 divisors (see below), whose sum is σ = 5674860. Its totient is φ = 976256.

The previous prime is 2440709. The next prime is 2440733. The reversal of 2440720 is 270442.

It can be written as a sum of positive squares in 2 ways, for example, as 262144 + 2178576 = 512^2 + 1476^2 .

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

It is a super-2 number, since 2×2440720² = 11914228236800, which contains 22 as substring.

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15175 + ... + 15334.

It is an arithmetic number, because the mean of its divisors is an integer number (283743).

2^2440720 is an apocalyptic number.

2440720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2440720 is an abundant number, since it is smaller than the sum of its proper divisors (3234140).

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

2440720 is a wasteful number, since it uses less digits than its factorization.

2440720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30522 (or 30516 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 2440720 is about 1562.2803845661. The cubic root of 2440720 is about 134.6395505752.

It can be divided in two parts, 2440 and 720, that added together give a triangular number (3160 = T₇₉).

The spelling of 2440720 in words is "two million, four hundred forty thousand, seven hundred twenty".