249333378 has 16 divisors (see below), whose sum is σ = 569904960. Its totient is φ = 71238096.

The previous prime is 249333377. The next prime is 249333397. The reversal of 249333378 is 873333942.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 5936509 = 249333378 / (2 + 4 + 9 + 3 + 3 + 3 + 3 + 7 + 8).

It is not an unprimeable number, because it can be changed into a prime (249333377) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2968213 + ... + 2968296.

It is an arithmetic number, because the mean of its divisors is an integer number (35619060).

Almost surely, 2^249333378 is an apocalyptic number.

249333378 is an abundant number, since it is smaller than the sum of its proper divisors (320571582).

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

249333378 is a wasteful number, since it uses less digits than its factorization.

249333378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5936521.

The product of its digits is 326592, while the sum is 42.

The square root of 249333378 is about 15790.2937908071. The cubic root of 249333378 is about 629.4000991356.

The spelling of 249333378 in words is "two hundred forty-nine million, three hundred thirty-three thousand, three hundred seventy-eight".