22066434 has 48 divisors (see below), whose sum is σ = 51872184. Its totient is φ = 6739200.

The previous prime is 22066417. The next prime is 22066441. The reversal of 22066434 is 43466022.

22066434 is a `hidden beast` number, since 220 + 6 + 6 + 434 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5688225 + 16378209 = 2385^2 + 4047^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22066398 and 22066407.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42094 + ... + 42614.

Almost surely, 2^22066434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22066434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25936092).

22066434 is an abundant number, since it is smaller than the sum of its proper divisors (29805750).

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

22066434 is a wasteful number, since it uses less digits than its factorization.

22066434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 720 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 22066434 is about 4697.4923097329. The cubic root of 22066434 is about 280.4856961259.

It can be divided in two parts, 22066 and 434, that added together give a square (22500 = 150²).

The spelling of 22066434 in words is "twenty-two million, sixty-six thousand, four hundred thirty-four".