747636742 has 8 divisors (see below), whose sum is σ = 1121581296. Its totient is φ = 373776312.

The previous prime is 747636739. The next prime is 747636751. The reversal of 747636742 is 247636747.

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 = 747636692 and 747636701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10863 + ... + 40165.

It is an arithmetic number, because the mean of its divisors is an integer number (140197662).

Almost surely, 2^747636742 is an apocalyptic number.

747636742 is a deficient number, since it is larger than the sum of its proper divisors (373944554).

747636742 is a wasteful number, since it uses less digits than its factorization.

747636742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42062.

The product of its digits is 1185408, while the sum is 46.

The square root of 747636742 is about 27342.9468419188. The cubic root of 747636742 is about 907.6049979320.

The spelling of 747636742 in words is "seven hundred forty-seven million, six hundred thirty-six thousand, seven hundred forty-two".