308199069 has 24 divisors (see below), whose sum is σ = 481403520. Its totient is φ = 189260928.

The previous prime is 308199053. The next prime is 308199077. The reversal of 308199069 is 960991803.

It is not a de Polignac number, because 308199069 - 2⁴ = 308199053 is a prime.

It is a super-2 number, since 2×308199069² = 189973332264933522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308199029) 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, 14239 + ... + 28620.

It is an arithmetic number, because the mean of its divisors is an integer number (20058480).

Almost surely, 2^308199069 is an apocalyptic number.

It is an amenable number.

308199069 is a deficient number, since it is larger than the sum of its proper divisors (173204451).

308199069 is a wasteful number, since it uses less digits than its factorization.

308199069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42929 (or 42926 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 308199069 is about 17555.5993631662. The cubic root of 308199069 is about 675.4768055024.

The spelling of 308199069 in words is "three hundred eight million, one hundred ninety-nine thousand, sixty-nine".