249674043 has 16 divisors (see below), whose sum is σ = 343284480. Its totient is φ = 161332704.

The previous prime is 249674027. The next prime is 249674063. The reversal of 249674043 is 340476942.

It is not a de Polignac number, because 249674043 - 2⁴ = 249674027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 249673992 and 249674010.

It is not an unprimeable number, because it can be changed into a prime (249674063) 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, 3738 + ... + 22656.

It is an arithmetic number, because the mean of its divisors is an integer number (21455280).

Almost surely, 2^249674043 is an apocalyptic number.

249674043 is a deficient number, since it is larger than the sum of its proper divisors (93610437).

249674043 is a wasteful number, since it uses less digits than its factorization.

249674043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19058.

The product of its (nonzero) digits is 145152, while the sum is 39.

The square root of 249674043 is about 15801.0772734013. The cubic root of 249674043 is about 629.6866191471.

The spelling of 249674043 in words is "two hundred forty-nine million, six hundred seventy-four thousand, forty-three".