249133378 has 48 divisors (see below), whose sum is σ = 429010560. Its totient is φ = 108231552.

The previous prime is 249133327. The next prime is 249133387. The reversal of 249133378 is 873331942.

249133378 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 249133378.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 567283 + ... + 567721.

It is an arithmetic number, because the mean of its divisors is an integer number (8937720).

Almost surely, 2^249133378 is an apocalyptic number.

249133378 is a deficient number, since it is larger than the sum of its proper divisors (179877182).

249133378 is a wasteful number, since it uses less digits than its factorization.

249133378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563 (or 550 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 249133378 is about 15783.9595159136. The cubic root of 249133378 is about 629.2317653521.

The spelling of 249133378 in words is "two hundred forty-nine million, one hundred thirty-three thousand, three hundred seventy-eight".