6240720 has 40 divisors (see below), whose sum is σ = 19346976. Its totient is φ = 1664128.

The previous prime is 6240701. The next prime is 6240737. The reversal of 6240720 is 270426.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×6240720² = 77893172236800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

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 7 ways as a sum of consecutive naturals, for example, 12762 + ... + 13241.

Almost surely, 2^6240720 is an apocalyptic number.

6240720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6240720 is an abundant number, since it is smaller than the sum of its proper divisors (13106256).

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

6240720 is a wasteful number, since it uses less digits than its factorization.

6240720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26019 (or 26013 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 6240720 is about 2498.1433105409. The cubic root of 6240720 is about 184.1103622734.

The spelling of 6240720 in words is "six million, two hundred forty thousand, seven hundred twenty".