400081199 has 8 divisors (see below), whose sum is σ = 459059328. Its totient is φ = 341559000.

The previous prime is 400081189. The next prime is 400081207. The reversal of 400081199 is 991180004.

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 400081199 - 2²⁸ = 131645743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400081189) 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, 112097 + ... + 115610.

It is an arithmetic number, because the mean of its divisors is an integer number (57382416).

Almost surely, 2^400081199 is an apocalyptic number.

400081199 is a deficient number, since it is larger than the sum of its proper divisors (58978129).

400081199 is a wasteful number, since it uses less digits than its factorization.

400081199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227965.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 400081199 is about 20002.0298719905. The cubic root of 400081199 is about 736.8561529671.

The spelling of 400081199 in words is "four hundred million, eighty-one thousand, one hundred ninety-nine".