402224233 has 8 divisors (see below), whose sum is σ = 431719848. Its totient is φ = 373377024.

The previous prime is 402224203. The next prime is 402224239. The reversal of 402224233 is 332422204.

It can be written as a sum of positive squares in 4 ways, for example, as 92006464 + 310217769 = 9592^2 + 17613^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402224233 - 2⁵ = 402224201 is a prime.

It is a super-2 number, since 2×402224233² = 323568667224876578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402224239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160816 + ... + 163297.

It is an arithmetic number, because the mean of its divisors is an integer number (53964981).

Almost surely, 2^402224233 is an apocalyptic number.

It is an amenable number.

402224233 is a deficient number, since it is larger than the sum of its proper divisors (29495615).

402224233 is a wasteful number, since it uses less digits than its factorization.

402224233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324203.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 402224233 is about 20055.5287389787. The cubic root of 402224233 is about 738.1694669124.

Adding to 402224233 its reverse (332422204), we get a palindrome (734646437).

The spelling of 402224233 in words is "four hundred two million, two hundred twenty-four thousand, two hundred thirty-three".