400430241 has 12 divisors (see below), whose sum is σ = 579301632. Its totient is φ = 266537016.

The previous prime is 400430237. The next prime is 400430267. The reversal of 400430241 is 142034004.

It is not a de Polignac number, because 400430241 - 2² = 400430237 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400430281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28561 + ... + 40206.

It is an arithmetic number, because the mean of its divisors is an integer number (48275136).

Almost surely, 2^400430241 is an apocalyptic number.

It is an amenable number.

400430241 is a deficient number, since it is larger than the sum of its proper divisors (178871391).

400430241 is a wasteful number, since it uses less digits than its factorization.

400430241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69420 (or 69417 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 400430241 is about 20010.7531342526. The cubic root of 400430241 is about 737.0703753032.

Adding to 400430241 its reverse (142034004), we get a palindrome (542464245).

The spelling of 400430241 in words is "four hundred million, four hundred thirty thousand, two hundred forty-one".