22049473 has 4 divisors (see below), whose sum is σ = 22195648. Its totient is φ = 21903300.

The previous prime is 22049437. The next prime is 22049491. The reversal of 22049473 is 37494022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22049473 - 2²¹ = 19952321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22049413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72861 + ... + 73162.

It is an arithmetic number, because the mean of its divisors is an integer number (5548912).

Almost surely, 2^22049473 is an apocalyptic number.

It is an amenable number.

22049473 is a deficient number, since it is larger than the sum of its proper divisors (146175).

22049473 is a wasteful number, since it uses less digits than its factorization.

22049473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146174.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 22049473 is about 4695.6866377560. The cubic root of 22049473 is about 280.4138141400.

It can be divided in two parts, 22049 and 473, that added together give a palindrome (22522).

The spelling of 22049473 in words is "twenty-two million, forty-nine thousand, four hundred seventy-three".