102440404 has 24 divisors (see below), whose sum is σ = 195850368. Its totient is φ = 46496640.

The previous prime is 102440369. The next prime is 102440407. The reversal of 102440404 is 404044201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102440407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41797 + ... + 44179.

It is an arithmetic number, because the mean of its divisors is an integer number (8160432).

Almost surely, 2^102440404 is an apocalyptic number.

It is an amenable number.

102440404 is a deficient number, since it is larger than the sum of its proper divisors (93409964).

102440404 is a wasteful number, since it uses less digits than its factorization.

102440404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3375 (or 3373 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 102440404 is about 10121.2847010644. The cubic root of 102440404 is about 467.9043623212.

Adding to 102440404 its reverse (404044201), we get a palindrome (506484605).

The spelling of 102440404 in words is "one hundred two million, four hundred forty thousand, four hundred four".