400231143445 has 8 divisors (see below), whose sum is σ = 548888425344. Its totient is φ = 274444212624.

The previous prime is 400231143443. The next prime is 400231143461. The reversal of 400231143445 is 544341132004.

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

It is a cyclic number.

It is not a de Polignac number, because 400231143445 - 2¹ = 400231143443 is a prime.

It is a super-3 number, since 3×400231143445³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400231143443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5717587729 + ... + 5717587798.

It is an arithmetic number, because the mean of its divisors is an integer number (68611053168).

Almost surely, 2^400231143445 is an apocalyptic number.

It is an amenable number.

400231143445 is a deficient number, since it is larger than the sum of its proper divisors (148657281899).

400231143445 is a wasteful number, since it uses less digits than its factorization.

400231143445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11435175539.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 400231143445 its reverse (544341132004), we get a palindrome (944572275449).

The spelling of 400231143445 in words is "four hundred billion, two hundred thirty-one million, one hundred forty-three thousand, four hundred forty-five".