402022263 has 4 divisors (see below), whose sum is σ = 536029688. Its totient is φ = 268014840.

The previous prime is 402022259. The next prime is 402022277. The reversal of 402022263 is 362220204.

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

It is not a de Polignac number, because 402022263 - 2² = 402022259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402022213) 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, 67003708 + ... + 67003713.

It is an arithmetic number, because the mean of its divisors is an integer number (134007422).

Almost surely, 2^402022263 is an apocalyptic number.

402022263 is a deficient number, since it is larger than the sum of its proper divisors (134007425).

402022263 is a wasteful number, since it uses less digits than its factorization.

402022263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134007424.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 402022263 is about 20050.4928368357. The cubic root of 402022263 is about 738.0458931809.

Adding to 402022263 its reverse (362220204), we get a palindrome (764242467).

The spelling of 402022263 in words is "four hundred two million, twenty-two thousand, two hundred sixty-three".