402223711 has 4 divisors (see below), whose sum is σ = 423393400. Its totient is φ = 381054024.

The previous prime is 402223693. The next prime is 402223739. The reversal of 402223711 is 117322204.

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

It is a cyclic number.

It is not a de Polignac number, because 402223711 - 2⁷ = 402223583 is a prime.

It is a super-2 number, since 2×402223711² = 323567827381223042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402223741) 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, 10584816 + ... + 10584853.

It is an arithmetic number, because the mean of its divisors is an integer number (105848350).

Almost surely, 2^402223711 is an apocalyptic number.

402223711 is a deficient number, since it is larger than the sum of its proper divisors (21169689).

402223711 is a wasteful number, since it uses less digits than its factorization.

402223711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21169688.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 402223711 is about 20055.5157251066. The cubic root of 402223711 is about 738.1691475842.

Adding to 402223711 its reverse (117322204), we get a palindrome (519545915).

The spelling of 402223711 in words is "four hundred two million, two hundred twenty-three thousand, seven hundred eleven".