102001404 has 12 divisors (see below), whose sum is σ = 238003304. Its totient is φ = 34000464.

The previous prime is 102001391. The next prime is 102001433. The reversal of 102001404 is 404100201.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 8500117 = 102001404 / (1 + 0 + 2 + 0 + 0 + 1 + 4 + 0 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 102001404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4250047 + ... + 4250070.

Almost surely, 2^102001404 is an apocalyptic number.

It is an amenable number.

102001404 is an abundant number, since it is smaller than the sum of its proper divisors (136001900).

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

102001404 is a wasteful number, since it uses less digits than its factorization.

102001404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8500124 (or 8500122 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 102001404 is about 10099.5744464804. The cubic root of 102001404 is about 467.2350166000.

Adding to 102001404 its reverse (404100201), we get a palindrome (506101605).

The spelling of 102001404 in words is "one hundred two million, one thousand, four hundred four".