402550023 has 8 divisors (see below), whose sum is σ = 536827248. Its totient is φ = 268319744.

The previous prime is 402550019. The next prime is 402550051. The reversal of 402550023 is 320055204.

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 402550023 - 2² = 402550019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402550823) 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 7 ways as a sum of consecutive naturals, for example, 22765 + ... + 36377.

It is an arithmetic number, because the mean of its divisors is an integer number (67103406).

Almost surely, 2^402550023 is an apocalyptic number.

402550023 is a deficient number, since it is larger than the sum of its proper divisors (134277225).

402550023 is a wasteful number, since it uses less digits than its factorization.

402550023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23473.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 402550023 is about 20063.6492941837. The cubic root of 402550023 is about 738.3687117702.

The spelling of 402550023 in words is "four hundred two million, five hundred fifty thousand, twenty-three".