400402223 has 8 divisors (see below), whose sum is σ = 431358816. Its totient is φ = 369468000.

The previous prime is 400402213. The next prime is 400402273. The reversal of 400402223 is 322204004.

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-400402223 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 (400402213) 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, 61253 + ... + 67473.

It is an arithmetic number, because the mean of its divisors is an integer number (53919852).

Almost surely, 2^400402223 is an apocalyptic number.

400402223 is a deficient number, since it is larger than the sum of its proper divisors (30956593).

400402223 is a wasteful number, since it uses less digits than its factorization.

400402223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11185.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 400402223 is about 20010.0530484054. The cubic root of 400402223 is about 737.0531840280.

Adding to 400402223 its reverse (322204004), we get a palindrome (722606227).

The spelling of 400402223 in words is "four hundred million, four hundred two thousand, two hundred twenty-three".