11917422 has 32 divisors (see below), whose sum is σ = 28892160. Its totient is φ = 3611160.

The previous prime is 11917417. The next prime is 11917439. The reversal of 11917422 is 22471911.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9438 + ... + 10625.

It is an arithmetic number, because the mean of its divisors is an integer number (902880).

Almost surely, 2^11917422 is an apocalyptic number.

11917422 is an abundant number, since it is smaller than the sum of its proper divisors (16974738).

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

11917422 is a wasteful number, since it uses less digits than its factorization.

11917422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20085 (or 20079 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 11917422 is about 3452.1619313120. The cubic root of 11917422 is about 228.4164825247.

The spelling of 11917422 in words is "eleven million, nine hundred seventeen thousand, four hundred twenty-two".