245477646 has 24 divisors (see below), whose sum is σ = 538279560. Its totient is φ = 80839536.

The previous prime is 245477633. The next prime is 245477651. The reversal of 245477646 is 646774542.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80661 + ... + 83648.

It is an arithmetic number, because the mean of its divisors is an integer number (22428315).

Almost surely, 2^245477646 is an apocalyptic number.

245477646 is an abundant number, since it is smaller than the sum of its proper divisors (292801914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245477646 is a wasteful number, since it uses less digits than its factorization.

245477646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164400 (or 164397 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 45.

The square root of 245477646 is about 15667.7262549484. The cubic root of 245477646 is about 626.1388481660.

The spelling of 245477646 in words is "two hundred forty-five million, four hundred seventy-seven thousand, six hundred forty-six".