309006342 has 48 divisors (see below), whose sum is σ = 694856448. Its totient is φ = 99172080.

The previous prime is 309006319. The next prime is 309006343. The reversal of 309006342 is 243600903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309006343) 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, 52143 + ... + 57765.

It is an arithmetic number, because the mean of its divisors is an integer number (14476176).

Almost surely, 2^309006342 is an apocalyptic number.

309006342 is an abundant number, since it is smaller than the sum of its proper divisors (385850106).

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

309006342 is a wasteful number, since it uses less digits than its factorization.

309006342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5745 (or 5742 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 309006342 is about 17578.5762222087. The cubic root of 309006342 is about 676.0660553661.

The spelling of 309006342 in words is "three hundred nine million, six thousand, three hundred forty-two".