747422642 has 8 divisors (see below), whose sum is σ = 1142287596. Its totient is φ = 366660112.

The previous prime is 747422573. The next prime is 747422647. The reversal of 747422642 is 246224747.

It can be written as a sum of positive squares in 2 ways, for example, as 733813921 + 13608721 = 27089^2 + 3689^2 .

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 = 747422596 and 747422605.

It is not an unprimeable number, because it can be changed into a prime (747422647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3525473 + ... + 3525684.

Almost surely, 2^747422642 is an apocalyptic number.

747422642 is a deficient number, since it is larger than the sum of its proper divisors (394864954).

747422642 is a wasteful number, since it uses less digits than its factorization.

747422642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7051212.

The product of its digits is 150528, while the sum is 38.

The square root of 747422642 is about 27339.0314751639. The cubic root of 747422642 is about 907.5183530099.

The spelling of 747422642 in words is "seven hundred forty-seven million, four hundred twenty-two thousand, six hundred forty-two".