400243234 has 8 divisors (see below), whose sum is σ = 600988608. Its totient is φ = 199913700.

The previous prime is 400243229. The next prime is 400243241. The reversal of 400243234 is 432342004.

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

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, 101542 + ... + 105409.

It is an arithmetic number, because the mean of its divisors is an integer number (75123576).

Almost surely, 2^400243234 is an apocalyptic number.

400243234 is a deficient number, since it is larger than the sum of its proper divisors (200745374).

400243234 is a wasteful number, since it uses less digits than its factorization.

400243234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207920.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 400243234 is about 20006.0799258625. The cubic root of 400243234 is about 736.9556164193.

Adding to 400243234 its reverse (432342004), we get a palindrome (832585238).

The spelling of 400243234 in words is "four hundred million, two hundred forty-three thousand, two hundred thirty-four".