402224311 has 2 divisors, whose sum is σ = 402224312. Its totient is φ = 402224310.

The previous prime is 402224297. The next prime is 402224321. The reversal of 402224311 is 113422204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402224311 - 2¹³ = 402216119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402224321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201112155 + 201112156.

It is an arithmetic number, because the mean of its divisors is an integer number (201112156).

Almost surely, 2^402224311 is an apocalyptic number.

402224311 is a deficient number, since it is larger than the sum of its proper divisors (1).

402224311 is an equidigital number, since it uses as much as digits as its factorization.

402224311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 402224311 is about 20055.5306835795. The cubic root of 402224311 is about 738.1695146281.

Adding to 402224311 its reverse (113422204), we get a palindrome (515646515).

The spelling of 402224311 in words is "four hundred two million, two hundred twenty-four thousand, three hundred eleven".