402015223 has 8 divisors (see below), whose sum is σ = 417075200. Its totient is φ = 387086040.

The previous prime is 402015199. The next prime is 402015227. The reversal of 402015223 is 322510204.

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 402015223 - 2⁵ = 402015191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 402015223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402015227) 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, 26415 + ... + 38752.

It is an arithmetic number, because the mean of its divisors is an integer number (52134400).

Almost surely, 2^402015223 is an apocalyptic number.

402015223 is a deficient number, since it is larger than the sum of its proper divisors (15059977).

402015223 is a wasteful number, since it uses less digits than its factorization.

402015223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65397.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 402015223 is about 20050.3172792851. The cubic root of 402015223 is about 738.0415850667.

Adding to 402015223 its reverse (322510204), we get a palindrome (724525427).

The spelling of 402015223 in words is "four hundred two million, fifteen thousand, two hundred twenty-three".