249469894 has 8 divisors (see below), whose sum is σ = 375409008. Its totient is φ = 124333560.

The previous prime is 249469889. The next prime is 249469897. The reversal of 249469894 is 498964942.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249469897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199917 + ... + 201160.

It is an arithmetic number, because the mean of its divisors is an integer number (46926126).

Almost surely, 2^249469894 is an apocalyptic number.

249469894 is a deficient number, since it is larger than the sum of its proper divisors (125939114).

249469894 is a wasteful number, since it uses less digits than its factorization.

249469894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401390.

The product of its digits is 4478976, while the sum is 55.

The square root of 249469894 is about 15794.6159814033. The cubic root of 249469894 is about 629.5149487233.

The spelling of 249469894 in words is "two hundred forty-nine million, four hundred sixty-nine thousand, eight hundred ninety-four".