20547422 has 8 divisors (see below), whose sum is σ = 35224176. Its totient is φ = 8806032.

The previous prime is 20547409. The next prime is 20547427. The reversal of 20547422 is 22474502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20547391 and 20547400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20547427) 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, 733823 + ... + 733850.

It is an arithmetic number, because the mean of its divisors is an integer number (4403022).

Almost surely, 2^20547422 is an apocalyptic number.

20547422 is a deficient number, since it is larger than the sum of its proper divisors (14676754).

20547422 is a wasteful number, since it uses less digits than its factorization.

20547422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467682.

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 20547422 is about 4532.9264278168. The cubic root of 20547422 is about 273.8960569739.

The spelling of 20547422 in words is "twenty million, five hundred forty-seven thousand, four hundred twenty-two".