402651223 has 8 divisors (see below), whose sum is σ = 440974800. Its totient is φ = 365377728.

The previous prime is 402651199. The next prime is 402651241. The reversal of 402651223 is 322156204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402651223 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 (402651523) 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, 261718 + ... + 263251.

It is an arithmetic number, because the mean of its divisors is an integer number (55121850).

Almost surely, 2^402651223 is an apocalyptic number.

402651223 is a deficient number, since it is larger than the sum of its proper divisors (38323577).

402651223 is a wasteful number, since it uses less digits than its factorization.

402651223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525041.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 402651223 is about 20066.1711096063. The cubic root of 402651223 is about 738.4305812262.

The spelling of 402651223 in words is "four hundred two million, six hundred fifty-one thousand, two hundred twenty-three".