400232441 has 12 divisors (see below), whose sum is σ = 478161828. Its totient is φ = 333783072.

The previous prime is 400232429. The next prime is 400232461. The reversal of 400232441 is 144232004.

It can be written as a sum of positive squares in 2 ways, for example, as 332004841 + 68227600 = 18221^2 + 8260^2 .

It is not a de Polignac number, because 400232441 - 2¹⁰ = 400231417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400232461) 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, 108566 + ... + 112191.

It is an arithmetic number, because the mean of its divisors is an integer number (39846819).

Almost surely, 2^400232441 is an apocalyptic number.

It is an amenable number.

400232441 is a deficient number, since it is larger than the sum of its proper divisors (77929387).

400232441 is a wasteful number, since it uses less digits than its factorization.

400232441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220808 (or 220801 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 400232441 is about 20005.8101810449. The cubic root of 400232441 is about 736.9489920863.

Adding to 400232441 its reverse (144232004), we get a palindrome (544464445).

The spelling of 400232441 in words is "four hundred million, two hundred thirty-two thousand, four hundred forty-one".