400012324 has 12 divisors (see below), whose sum is σ = 701218224. Its totient is φ = 199664264.

The previous prime is 400012321. The next prime is 400012351. The reversal of 400012324 is 423210004.

It is a junction number, because it is equal to n+sod(n) for n = 400012298 and 400012307.

It is not an unprimeable number, because it can be changed into a prime (400012321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82834 + ... + 87529.

It is an arithmetic number, because the mean of its divisors is an integer number (58434852).

Almost surely, 2^400012324 is an apocalyptic number.

It is an amenable number.

400012324 is a deficient number, since it is larger than the sum of its proper divisors (301205900).

400012324 is a wasteful number, since it uses less digits than its factorization.

400012324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170954 (or 170952 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 400012324 is about 20000.3080976269. The cubic root of 400012324 is about 736.8138666511.

Adding to 400012324 its reverse (423210004), we get a palindrome (823222328).

The spelling of 400012324 in words is "four hundred million, twelve thousand, three hundred twenty-four".