22407401 has 4 divisors (see below), whose sum is σ = 23180100. Its totient is φ = 21634704.

The previous prime is 22407379. The next prime is 22407439. The reversal of 22407401 is 10470422.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3701776 + 18705625 = 1924^2 + 4325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22407401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22407461) 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, 386306 + ... + 386363.

It is an arithmetic number, because the mean of its divisors is an integer number (5795025).

Almost surely, 2^22407401 is an apocalyptic number.

It is an amenable number.

22407401 is a deficient number, since it is larger than the sum of its proper divisors (772699).

22407401 is an equidigital number, since it uses as much as digits as its factorization.

22407401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772698.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 22407401 is about 4733.6456352372. The cubic root of 22407401 is about 281.9229917318.

Adding to 22407401 its reverse (10470422), we get a palindrome (32877823).

The spelling of 22407401 in words is "twenty-two million, four hundred seven thousand, four hundred one".