102449838 has 8 divisors (see below), whose sum is σ = 204899688. Its totient is φ = 34149944.

The previous prime is 102449821. The next prime is 102449861. The reversal of 102449838 is 838944201.

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

102449838 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 102449796 and 102449805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8537481 + ... + 8537492.

It is an arithmetic number, because the mean of its divisors is an integer number (25612461).

Almost surely, 2^102449838 is an apocalyptic number.

102449838 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.

102449838 is a wasteful number, since it uses less digits than its factorization.

102449838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17074978.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 102449838 is about 10121.7507378911. The cubic root of 102449838 is about 467.9187253852.

The spelling of 102449838 in words is "one hundred two million, four hundred forty-nine thousand, eight hundred thirty-eight".