249779468 has 6 divisors (see below), whose sum is σ = 437114076. Its totient is φ = 124889732.

The previous prime is 249779461. The next prime is 249779473. The reversal of 249779468 is 864977942.

249779468 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (249779461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31222430 + ... + 31222437.

It is an arithmetic number, because the mean of its divisors is an integer number (72852346).

Almost surely, 2^249779468 is an apocalyptic number.

It is an amenable number.

249779468 is a deficient number, since it is larger than the sum of its proper divisors (187334608).

249779468 is a wasteful number, since it uses less digits than its factorization.

249779468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62444871 (or 62444869 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 56.

The square root of 249779468 is about 15804.4129280401. The cubic root of 249779468 is about 629.7752351810.

The spelling of 249779468 in words is "two hundred forty-nine million, seven hundred seventy-nine thousand, four hundred sixty-eight".