249778034 has 32 divisors (see below), whose sum is σ = 418176000. Its totient is φ = 110935440.

The previous prime is 249778033. The next prime is 249778049. The reversal of 249778034 is 430877942.

It is not an unprimeable number, because it can be changed into a prime (249778033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257819 + ... + 258785.

It is an arithmetic number, because the mean of its divisors is an integer number (13068000).

Almost surely, 2^249778034 is an apocalyptic number.

249778034 is a deficient number, since it is larger than the sum of its proper divisors (168397966).

249778034 is a wasteful number, since it uses less digits than its factorization.

249778034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238.

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 249778034 is about 15804.3675608991. The cubic root of 249778034 is about 629.7740299853.

The spelling of 249778034 in words is "two hundred forty-nine million, seven hundred seventy-eight thousand, thirty-four".