245642764 has 6 divisors (see below), whose sum is σ = 429874844. Its totient is φ = 122821380.

The previous prime is 245642753. The next prime is 245642777. The reversal of 245642764 is 467246542.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30705342 + ... + 30705349.

Almost surely, 2^245642764 is an apocalyptic number.

It is an amenable number.

245642764 is a deficient number, since it is larger than the sum of its proper divisors (184232080).

245642764 is a wasteful number, since it uses less digits than its factorization.

245642764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61410695 (or 61410693 counting only the distinct ones).

The product of its digits is 322560, while the sum is 40.

The square root of 245642764 is about 15672.9947361696. The cubic root of 245642764 is about 626.2792053078.

The spelling of 245642764 in words is "two hundred forty-five million, six hundred forty-two thousand, seven hundred sixty-four".