30936742 has 8 divisors (see below), whose sum is σ = 46646136. Its totient is φ = 15388032.

The previous prime is 30936727. The next prime is 30936751. The reversal of 30936742 is 24763903.

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 = 30936698 and 30936707.

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, 39688 + ... + 40459.

It is an arithmetic number, because the mean of its divisors is an integer number (5830767).

Almost surely, 2^30936742 is an apocalyptic number.

30936742 is a deficient number, since it is larger than the sum of its proper divisors (15709394).

30936742 is a wasteful number, since it uses less digits than its factorization.

30936742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80342.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 30936742 is about 5562.0807257716. The cubic root of 30936742 is about 313.9242450487.

The spelling of 30936742 in words is "thirty million, nine hundred thirty-six thousand, seven hundred forty-two".