308946369 has 16 divisors (see below), whose sum is σ = 421632000. Its totient is φ = 201132240.

The previous prime is 308946359. The next prime is 308946377. The reversal of 308946369 is 963649803.

It is not a de Polignac number, because 308946369 - 2⁴ = 308946353 is a prime.

It is a super-2 number, since 2×308946369² = 190895717836568322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (308946349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68164 + ... + 72554.

It is an arithmetic number, because the mean of its divisors is an integer number (26352000).

Almost surely, 2^308946369 is an apocalyptic number.

It is an amenable number.

308946369 is a deficient number, since it is larger than the sum of its proper divisors (112685631).

308946369 is a wasteful number, since it uses less digits than its factorization.

308946369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4940.

The product of its (nonzero) digits is 839808, while the sum is 48.

The square root of 308946369 is about 17576.8702845529. The cubic root of 308946369 is about 676.0223148044.

The spelling of 308946369 in words is "three hundred eight million, nine hundred forty-six thousand, three hundred sixty-nine".