400143022 has 8 divisors (see below), whose sum is σ = 603809136. Its totient is φ = 198873312.

The previous prime is 400143019. The next prime is 400143041. The reversal of 400143022 is 220341004.

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

It is a super-2 number, since 2×400143022² = 320228876110584968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400142987 and 400143005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 598683 + ... + 599350.

It is an arithmetic number, because the mean of its divisors is an integer number (75476142).

Almost surely, 2^400143022 is an apocalyptic number.

400143022 is a deficient number, since it is larger than the sum of its proper divisors (203666114).

400143022 is a wasteful number, since it uses less digits than its factorization.

400143022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198202.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 400143022 is about 20003.5752304432. The cubic root of 400143022 is about 736.8941055226.

Adding to 400143022 its reverse (220341004), we get a palindrome (620484026).

The spelling of 400143022 in words is "four hundred million, one hundred forty-three thousand, twenty-two".