22185074 has 4 divisors (see below), whose sum is σ = 33277614. Its totient is φ = 11092536.

The previous prime is 22185049. The next prime is 22185077. The reversal of 22185074 is 47058122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18003049 + 4182025 = 4243^2 + 2045^2 .

It is a super-3 number, since 3×22185074³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22185077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5546267 + ... + 5546270.

Almost surely, 2^22185074 is an apocalyptic number.

22185074 is a deficient number, since it is larger than the sum of its proper divisors (11092540).

22185074 is a wasteful number, since it uses less digits than its factorization.

22185074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11092539.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 22185074 is about 4710.1033958927. The cubic root of 22185074 is about 280.9874742710.

The spelling of 22185074 in words is "twenty-two million, one hundred eighty-five thousand, seventy-four".