309441214 has 8 divisors (see below), whose sum is σ = 464611680. Its totient is φ = 154570656.

The previous prime is 309441211. The next prime is 309441221. The reversal of 309441214 is 412144903.

309441214 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309441211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72379 + ... + 76534.

It is an arithmetic number, because the mean of its divisors is an integer number (58076460).

Almost surely, 2^309441214 is an apocalyptic number.

309441214 is a deficient number, since it is larger than the sum of its proper divisors (155170466).

309441214 is a wasteful number, since it uses less digits than its factorization.

309441214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149954.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 309441214 is about 17590.9412482675. The cubic root of 309441214 is about 676.3830546707.

The spelling of 309441214 in words is "three hundred nine million, four hundred forty-one thousand, two hundred fourteen".