7388642 has 8 divisors (see below), whose sum is σ = 11734956. Its totient is φ = 3476992.

The previous prime is 7388639. The next prime is 7388653. The reversal of 7388642 is 2468837.

It can be written as a sum of positive squares in 2 ways, for example, as 6558721 + 829921 = 2561^2 + 911^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 7388596 and 7388605.

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 3 ways as a sum of consecutive naturals, for example, 108623 + ... + 108690.

Almost surely, 2^7388642 is an apocalyptic number.

7388642 is a deficient number, since it is larger than the sum of its proper divisors (4346314).

7388642 is a wasteful number, since it uses less digits than its factorization.

7388642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217332.

The product of its digits is 64512, while the sum is 38.

The square root of 7388642 is about 2718.2056581502. The cubic root of 7388642 is about 194.7697655277.

The spelling of 7388642 in words is "seven million, three hundred eighty-eight thousand, six hundred forty-two".