307022742 has 48 divisors (see below), whose sum is σ = 718819920. Its totient is φ = 94147776.

The previous prime is 307022741. The next prime is 307022761. The reversal of 307022742 is 247220703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307022741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72109 + ... + 76247.

It is an arithmetic number, because the mean of its divisors is an integer number (14975415).

Almost surely, 2^307022742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307022742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359409960).

307022742 is an abundant number, since it is smaller than the sum of its proper divisors (411797178).

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

307022742 is a wasteful number, since it uses less digits than its factorization.

307022742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4477 (or 4474 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 307022742 is about 17522.0644331654. The cubic root of 307022742 is about 674.6163284636.

The spelling of 307022742 in words is "three hundred seven million, twenty-two thousand, seven hundred forty-two".