30347742 has 16 divisors (see below), whose sum is σ = 60952320. Its totient is φ = 10073112.

The previous prime is 30347701. The next prime is 30347761. The reversal of 30347742 is 24774303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9148 + ... + 12015.

It is an arithmetic number, because the mean of its divisors is an integer number (3809520).

Almost surely, 2^30347742 is an apocalyptic number.

30347742 is an abundant number, since it is smaller than the sum of its proper divisors (30604578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30347742 is a wasteful number, since it uses less digits than its factorization.

30347742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21407.

The product of its (nonzero) digits is 14112, while the sum is 30.

The square root of 30347742 is about 5508.8784702515. The cubic root of 30347742 is about 311.9192139623.

The spelling of 30347742 in words is "thirty million, three hundred forty-seven thousand, seven hundred forty-two".