400231105 has 16 divisors (see below), whose sum is σ = 510206400. Its totient is φ = 300542400.

The previous prime is 400231099. The next prime is 400231127. The reversal of 400231105 is 501132004.

It is not a de Polignac number, because 400231105 - 2⁷ = 400230977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8971 + ... + 29680.

It is an arithmetic number, because the mean of its divisors is an integer number (31887900).

Almost surely, 2^400231105 is an apocalyptic number.

It is an amenable number.

400231105 is a deficient number, since it is larger than the sum of its proper divisors (109975295).

400231105 is a wasteful number, since it uses less digits than its factorization.

400231105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38784.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 400231105 is about 20005.7767907172. The cubic root of 400231105 is about 736.9481720920.

Adding to 400231105 its reverse (501132004), we get a palindrome (901363109).

The spelling of 400231105 in words is "four hundred million, two hundred thirty-one thousand, one hundred five".