249438102 has 8 divisors (see below), whose sum is σ = 498876216. Its totient is φ = 83146032.

The previous prime is 249438083. The next prime is 249438103. The reversal of 249438102 is 201834942.

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

249438102 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249438103) 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, 20786503 + ... + 20786514.

It is an arithmetic number, because the mean of its divisors is an integer number (62359527).

Almost surely, 2^249438102 is an apocalyptic number.

249438102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

249438102 is a wasteful number, since it uses less digits than its factorization.

249438102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41573022.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 249438102 is about 15793.6095304398. The cubic root of 249438102 is about 629.4882061651.

The spelling of 249438102 in words is "two hundred forty-nine million, four hundred thirty-eight thousand, one hundred two".