22147436 has 12 divisors (see below), whose sum is σ = 40443312. Its totient is φ = 10592208.

The previous prime is 22147429. The next prime is 22147441. The reversal of 22147436 is 63474122.

It is a junction number, because it is equal to n+sod(n) for n = 22147399 and 22147408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120275 + ... + 120458.

It is an arithmetic number, because the mean of its divisors is an integer number (3370276).

Almost surely, 2^22147436 is an apocalyptic number.

It is an amenable number.

22147436 is a deficient number, since it is larger than the sum of its proper divisors (18295876).

22147436 is a wasteful number, since it uses less digits than its factorization.

22147436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240760 (or 240758 counting only the distinct ones).

The product of its digits is 8064, while the sum is 29.

The square root of 22147436 is about 4706.1062461445. The cubic root of 22147436 is about 280.8284815930.

The spelling of 22147436 in words is "twenty-two million, one hundred forty-seven thousand, four hundred thirty-six".