748318642 has 4 divisors (see below), whose sum is σ = 1122477966. Its totient is φ = 374159320.

The previous prime is 748318619. The next prime is 748318661. The reversal of 748318642 is 246813847.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 720976201 + 27342441 = 26851^2 + 5229^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187079659 + ... + 187079662.

Almost surely, 2^748318642 is an apocalyptic number.

748318642 is a deficient number, since it is larger than the sum of its proper divisors (374159324).

748318642 is a wasteful number, since it uses less digits than its factorization.

748318642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374159323.

The product of its digits is 258048, while the sum is 43.

The square root of 748318642 is about 27355.4133947926. The cubic root of 748318642 is about 907.8808483770.

The spelling of 748318642 in words is "seven hundred forty-eight million, three hundred eighteen thousand, six hundred forty-two".