404202012 has 12 divisors (see below), whose sum is σ = 943138056. Its totient is φ = 134734000.

The previous prime is 404201983. The next prime is 404202053. The reversal of 404202012 is 210202404.

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

It is a junction number, because it is equal to n+sod(n) for n = 404201982 and 404202000.

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, 16841739 + ... + 16841762.

It is an arithmetic number, because the mean of its divisors is an integer number (78594838).

Almost surely, 2^404202012 is an apocalyptic number.

It is an amenable number.

404202012 is an abundant number, since it is smaller than the sum of its proper divisors (538936044).

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

404202012 is a wasteful number, since it uses less digits than its factorization.

404202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33683508 (or 33683506 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 404202012 is about 20104.7758505286. The cubic root of 404202012 is about 739.3773749890.

Adding to 404202012 its reverse (210202404), we get a palindrome (614404416).

The spelling of 404202012 in words is "four hundred four million, two hundred two thousand, twelve".