22747401 has 6 divisors (see below), whose sum is σ = 32857370. Its totient is φ = 15164928.

The previous prime is 22747379. The next prime is 22747409. The reversal of 22747401 is 10474722.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15327225 + 7420176 = 3915^2 + 2724^2 .

It is not a de Polignac number, because 22747401 - 2⁶ = 22747337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22747409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1263736 + ... + 1263753.

Almost surely, 2^22747401 is an apocalyptic number.

It is an amenable number.

22747401 is a deficient number, since it is larger than the sum of its proper divisors (10109969).

22747401 is a wasteful number, since it uses less digits than its factorization.

22747401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527495 (or 2527492 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 22747401 is about 4769.4235500739. The cubic root of 22747401 is about 283.3417647626.

The spelling of 22747401 in words is "twenty-two million, seven hundred forty-seven thousand, four hundred one".