400229081 has 8 divisors (see below), whose sum is σ = 462120960. Its totient is φ = 339516288.

The previous prime is 400229077. The next prime is 400229083. The reversal of 400229081 is 180922004.

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 400229081 - 2² = 400229077 is a prime.

It is a super-2 number, since 2×400229081² = 320366634556209122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 400229081.

It is not an unprimeable number, because it can be changed into a prime (400229083) 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, 294041 + ... + 295398.

It is an arithmetic number, because the mean of its divisors is an integer number (57765120).

Almost surely, 2^400229081 is an apocalyptic number.

It is an amenable number.

400229081 is a deficient number, since it is larger than the sum of its proper divisors (61891879).

400229081 is an equidigital number, since it uses as much as digits as its factorization.

400229081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589543.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 400229081 is about 20005.7262052643. The cubic root of 400229081 is about 736.9469298217.

The spelling of 400229081 in words is "four hundred million, two hundred twenty-nine thousand, eighty-one".