400322023142 has 16 divisors (see below), whose sum is σ = 629739705600. Its totient is φ = 190496252232.

The previous prime is 400322023141. The next prime is 400322023147. The reversal of 400322023142 is 241320223004.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400322023141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21856808 + ... + 21875115.

It is an arithmetic number, because the mean of its divisors is an integer number (39358731600).

Almost surely, 2^400322023142 is an apocalyptic number.

400322023142 is a deficient number, since it is larger than the sum of its proper divisors (229417682458).

400322023142 is a wasteful number, since it uses less digits than its factorization.

400322023142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43732147.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 400322023142 its reverse (241320223004), we get a palindrome (641642246146).

The spelling of 400322023142 in words is "four hundred billion, three hundred twenty-two million, twenty-three thousand, one hundred forty-two".