400222441 has 8 divisors (see below), whose sum is σ = 421661600. Its totient is φ = 378820800.

The previous prime is 400222411. The next prime is 400222463. The reversal of 400222441 is 144222004.

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 400222441 - 2⁹ = 400221929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400222411) 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, 14050 + ... + 31588.

It is an arithmetic number, because the mean of its divisors is an integer number (52707700).

Almost surely, 2^400222441 is an apocalyptic number.

It is an amenable number.

400222441 is a deficient number, since it is larger than the sum of its proper divisors (21439159).

400222441 is a wasteful number, since it uses less digits than its factorization.

400222441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18759.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 400222441 is about 20005.5602520899. The cubic root of 400222441 is about 736.9428543602.

Adding to 400222441 its reverse (144222004), we get a palindrome (544444445).

The spelling of 400222441 in words is "four hundred million, two hundred twenty-two thousand, four hundred forty-one".