400222569 has 8 divisors (see below), whose sum is σ = 533957632. Its totient is φ = 266651280.

The previous prime is 400222567. The next prime is 400222579. The reversal of 400222569 is 965222004.

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

It is not a de Polignac number, because 400222569 - 2¹ = 400222567 is a prime.

It is a super-2 number, since 2×400222569² = 320356209473919522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400222567) 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, 35122 + ... + 45099.

It is an arithmetic number, because the mean of its divisors is an integer number (66744704).

Almost surely, 2^400222569 is an apocalyptic number.

It is an amenable number.

400222569 is a deficient number, since it is larger than the sum of its proper divisors (133735063).

400222569 is a wasteful number, since it uses less digits than its factorization.

400222569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81887.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 400222569 is about 20005.5634512003. The cubic root of 400222569 is about 736.9429329237.

The spelling of 400222569 in words is "four hundred million, two hundred twenty-two thousand, five hundred sixty-nine".