400243333 has 16 divisors (see below), whose sum is σ = 467544960. Its totient is φ = 335514816.

The previous prime is 400243331. The next prime is 400243339. The reversal of 400243333 is 333342004.

It is not a de Polignac number, because 400243333 - 2¹ = 400243331 is a prime.

It is a super-2 number, since 2×400243333² = 320389451221897778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400243331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127183 + ... + 130291.

It is an arithmetic number, because the mean of its divisors is an integer number (29221560).

Almost surely, 2^400243333 is an apocalyptic number.

It is an amenable number.

400243333 is a deficient number, since it is larger than the sum of its proper divisors (67301627).

400243333 is a wasteful number, since it uses less digits than its factorization.

400243333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3516.

The product of its (nonzero) digits is 2592, while the sum is 22.

The square root of 400243333 is about 20006.0824001102. The cubic root of 400243333 is about 736.9556771812.

Adding to 400243333 its reverse (333342004), we get a palindrome (733585337).

The spelling of 400243333 in words is "four hundred million, two hundred forty-three thousand, three hundred thirty-three".