249029943 has 32 divisors (see below), whose sum is σ = 349460160. Its totient is φ = 157593600.

The previous prime is 249029939. The next prime is 249029951. The reversal of 249029943 is 349920942.

It is not a de Polignac number, because 249029943 - 2² = 249029939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 249029895 and 249029904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249029953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1087353 + ... + 1087581.

It is an arithmetic number, because the mean of its divisors is an integer number (10920630).

Almost surely, 2^249029943 is an apocalyptic number.

249029943 is a deficient number, since it is larger than the sum of its proper divisors (100430217).

249029943 is a wasteful number, since it uses less digits than its factorization.

249029943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 249029943 is about 15780.6825897995. The cubic root of 249029943 is about 629.1446719813.

The spelling of 249029943 in words is "two hundred forty-nine million, twenty-nine thousand, nine hundred forty-three".