305372146 has 12 divisors (see below), whose sum is σ = 474400602. Its totient is φ = 147420224.

The previous prime is 305372143. The next prime is 305372147. The reversal of 305372146 is 641273503.

It can be written as a sum of positive squares in 3 ways, for example, as 263705121 + 41667025 = 16239^2 + 6455^2 .

It is not an unprimeable number, because it can be changed into a prime (305372143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 89095 + ... + 92458.

Almost surely, 2^305372146 is an apocalyptic number.

305372146 is a deficient number, since it is larger than the sum of its proper divisors (169028456).

305372146 is a wasteful number, since it uses less digits than its factorization.

305372146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181613 (or 181584 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 305372146 is about 17474.9004575133. The cubic root of 305372146 is about 673.4052124575.

The spelling of 305372146 in words is "three hundred five million, three hundred seventy-two thousand, one hundred forty-six".