7463840 has 24 divisors (see below), whose sum is σ = 17633700. Its totient is φ = 2985472.

The previous prime is 7463809. The next prime is 7463843. The reversal of 7463840 is 483647.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7463824 + 16 = 2732^2 + 4^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 7463797 and 7463806.

It is not an unprimeable number, because it can be changed into a prime (7463843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23165 + ... + 23484.

Almost surely, 2^7463840 is an apocalyptic number.

It is an amenable number.

7463840 is an abundant number, since it is smaller than the sum of its proper divisors (10169860).

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

7463840 is a wasteful number, since it uses less digits than its factorization.

7463840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46664 (or 46656 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 7463840 is about 2732.0029282561. The cubic root of 7463840 is about 195.4282937685.

The spelling of 7463840 in words is "seven million, four hundred sixty-three thousand, eight hundred forty".