7642408 has 32 divisors (see below), whose sum is σ = 15235200. Its totient is φ = 3583872.

The previous prime is 7642403. The next prime is 7642487. The reversal of 7642408 is 8042467.

It is a self number, because there is not a number n which added to its sum of digits gives 7642408.

It is not an unprimeable number, because it can be changed into a prime (7642403) 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 7 ways as a sum of consecutive naturals, for example, 20641 + ... + 21007.

It is an arithmetic number, because the mean of its divisors is an integer number (476100).

Almost surely, 2^7642408 is an apocalyptic number.

It is an amenable number.

7642408 is a deficient number, since it is larger than the sum of its proper divisors (7592792).

7642408 is a wasteful number, since it uses less digits than its factorization.

7642408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 7642408 is about 2764.4905498120. The cubic root of 7642408 is about 196.9745301058.

The spelling of 7642408 in words is "seven million, six hundred forty-two thousand, four hundred eight".