402545223 has 12 divisors (see below), whose sum is σ = 584817480. Its totient is φ = 266811216.

The previous prime is 402545207. The next prime is 402545243. The reversal of 402545223 is 322545204.

It is a happy number.

It is not a de Polignac number, because 402545223 - 2⁴ = 402545207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402545203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127713 + ... + 130826.

It is an arithmetic number, because the mean of its divisors is an integer number (48734790).

Almost surely, 2^402545223 is an apocalyptic number.

402545223 is a deficient number, since it is larger than the sum of its proper divisors (182272257).

402545223 is a wasteful number, since it uses less digits than its factorization.

402545223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258718 (or 258715 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 402545223 is about 20063.5296745114. The cubic root of 402545223 is about 738.3657769930.

The spelling of 402545223 in words is "four hundred two million, five hundred forty-five thousand, two hundred twenty-three".