102044421 has 32 divisors (see below), whose sum is σ = 168508800. Its totient is φ = 60652800.

The previous prime is 102044413. The next prime is 102044429. The reversal of 102044421 is 124440201.

It is an interprime number because it is at equal distance from previous prime (102044413) and next prime (102044429).

It is not a de Polignac number, because 102044421 - 2³ = 102044413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102044394 and 102044403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102044429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2871 + ... + 14571.

It is an arithmetic number, because the mean of its divisors is an integer number (5265900).

Almost surely, 2^102044421 is an apocalyptic number.

It is an amenable number.

102044421 is a deficient number, since it is larger than the sum of its proper divisors (66464379).

102044421 is a wasteful number, since it uses less digits than its factorization.

102044421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11746 (or 11740 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 102044421 is about 10101.7038661802. The cubic root of 102044421 is about 467.3006896304.

Adding to 102044421 its reverse (124440201), we get a palindrome (226484622).

The spelling of 102044421 in words is "one hundred two million, forty-four thousand, four hundred twenty-one".