22427401 has 4 divisors (see below), whose sum is σ = 22533904. Its totient is φ = 22320900.

The previous prime is 22427399. The next prime is 22427417. The reversal of 22427401 is 10472422.

It is a happy number.

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 22427401 - 2¹ = 22427399 is a prime.

It is a super-2 number, since 2×22427401² = 1005976631229602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22427441) 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, 52935 + ... + 53356.

It is an arithmetic number, because the mean of its divisors is an integer number (5633476).

Almost surely, 2^22427401 is an apocalyptic number.

It is an amenable number.

22427401 is a deficient number, since it is larger than the sum of its proper divisors (106503).

22427401 is a wasteful number, since it uses less digits than its factorization.

22427401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106502.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 22427401 is about 4735.7577007275. The cubic root of 22427401 is about 282.0068447276.

Adding to 22427401 its reverse (10472422), we get a palindrome (32899823).

The spelling of 22427401 in words is "twenty-two million, four hundred twenty-seven thousand, four hundred one".