309898466 has 16 divisors (see below), whose sum is σ = 481299840. Its totient is φ = 149474640.

The previous prime is 309898451. The next prime is 309898489. The reversal of 309898466 is 664898903.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110615 + ... + 113381.

It is an arithmetic number, because the mean of its divisors is an integer number (30081240).

Almost surely, 2^309898466 is an apocalyptic number.

309898466 is a deficient number, since it is larger than the sum of its proper divisors (171401374).

309898466 is a wasteful number, since it uses less digits than its factorization.

309898466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4729.

The product of its (nonzero) digits is 2239488, while the sum is 53.

The square root of 309898466 is about 17603.9332536794. The cubic root of 309898466 is about 676.7160476903.

The spelling of 309898466 in words is "three hundred nine million, eight hundred ninety-eight thousand, four hundred sixty-six".