102403444 has 48 divisors (see below), whose sum is σ = 222941376. Its totient is φ = 40435200.

The previous prime is 102403423. The next prime is 102403453. The reversal of 102403444 is 444304201.

It is a super-2 number, since 2×102403444² = 20972930686122272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

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 15 ways as a sum of consecutive naturals, for example, 4459 + ... + 14989.

It is an arithmetic number, because the mean of its divisors is an integer number (4644612).

Almost surely, 2^102403444 is an apocalyptic number.

It is an amenable number.

102403444 is an abundant number, since it is smaller than the sum of its proper divisors (120537932).

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

102403444 is a wasteful number, since it uses less digits than its factorization.

102403444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10576 (or 10574 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 102403444 is about 10119.4586811746. The cubic root of 102403444 is about 467.8480830121.

Adding to 102403444 its reverse (444304201), we get a palindrome (546707645).

The spelling of 102403444 in words is "one hundred two million, four hundred three thousand, four hundred forty-four".