22400271 has 12 divisors (see below), whose sum is σ = 34259472. Its totient is φ = 14054976.

The previous prime is 22400251. The next prime is 22400293. The reversal of 22400271 is 17200422.

It is not a de Polignac number, because 22400271 - 2¹⁴ = 22383887 is a prime.

22400271 is a modest number, since divided by 271 gives 224 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22400251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73051 + ... + 73356.

It is an arithmetic number, because the mean of its divisors is an integer number (2854956).

Almost surely, 2^22400271 is an apocalyptic number.

22400271 is a deficient number, since it is larger than the sum of its proper divisors (11859201).

22400271 is a wasteful number, since it uses less digits than its factorization.

22400271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146430 (or 146427 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 22400271 is about 4732.8924559935. The cubic root of 22400271 is about 281.8930860744.

Adding to 22400271 its reverse (17200422), we get a palindrome (39600693).

The spelling of 22400271 in words is "twenty-two million, four hundred thousand, two hundred seventy-one".