7481630 has 48 divisors (see below), whose sum is σ = 15415920. Its totient is φ = 2605824.

The previous prime is 7481629. The next prime is 7481653. The reversal of 7481630 is 361847.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7481593 and 7481602.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 31994 + ... + 32226.

It is an arithmetic number, because the mean of its divisors is an integer number (321165).

Almost surely, 2^7481630 is an apocalyptic number.

7481630 is an abundant number, since it is smaller than the sum of its proper divisors (7934290).

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

7481630 is a wasteful number, since it uses less digits than its factorization.

7481630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 7481630 is about 2735.2568435158. The cubic root of 7481630 is about 195.5834378049.

The spelling of 7481630 in words is "seven million, four hundred eighty-one thousand, six hundred thirty".