402200404493 has 2 divisors, whose sum is σ = 402200404494. Its totient is φ = 402200404492.

The previous prime is 402200404471. The next prime is 402200404537. The reversal of 402200404493 is 394404002204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 390377539204 + 11822865289 = 624802^2 + 108733^2 .

It is a cyclic number.

It is not a de Polignac number, because 402200404493 - 2²² = 402196210189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402200404393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201100202246 + 201100202247.

It is an arithmetic number, because the mean of its divisors is an integer number (201100202247).

Almost surely, 2^402200404493 is an apocalyptic number.

It is an amenable number.

402200404493 is a deficient number, since it is larger than the sum of its proper divisors (1).

402200404493 is an equidigital number, since it uses as much as digits as its factorization.

402200404493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 402200404493 its reverse (394404002204), we get a palindrome (796604406697).

The spelling of 402200404493 in words is "four hundred two billion, two hundred million, four hundred four thousand, four hundred ninety-three".