212085404 has 24 divisors (see below), whose sum is σ = 393599808. Its totient is φ = 99648000.

The previous prime is 212085361. The next prime is 212085407. The reversal of 212085404 is 404580212.

It is a happy number.

212085404 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212085407) 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, 48992 + ... + 53144.

It is an arithmetic number, because the mean of its divisors is an integer number (16399992).

Almost surely, 2^212085404 is an apocalyptic number.

It is an amenable number.

212085404 is a deficient number, since it is larger than the sum of its proper divisors (181514404).

212085404 is a wasteful number, since it uses less digits than its factorization.

212085404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4925 (or 4923 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 212085404 is about 14563.1522686539. The cubic root of 212085404 is about 596.3532543896.

The spelling of 212085404 in words is "two hundred twelve million, eighty-five thousand, four hundred four".