400231043 has 8 divisors (see below), whose sum is σ = 407637360. Its totient is φ = 392845600.

The previous prime is 400231019. The next prime is 400231093. The reversal of 400231043 is 340132004.

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

It is not a de Polignac number, because 400231043 - 2²⁴ = 383453827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400231093) 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, 36521 + ... + 46197.

It is an arithmetic number, because the mean of its divisors is an integer number (50954670).

Almost surely, 2^400231043 is an apocalyptic number.

400231043 is a deficient number, since it is larger than the sum of its proper divisors (7406317).

400231043 is an equidigital number, since it uses as much as digits as its factorization.

400231043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10437.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 400231043 is about 20005.7752411647. The cubic root of 400231043 is about 736.9481340383.

Adding to 400231043 its reverse (340132004), we get a palindrome (740363047).

The spelling of 400231043 in words is "four hundred million, two hundred thirty-one thousand, forty-three".