400142020444102 has 16 divisors (see below), whose sum is σ = 614856152259072. Its totient is φ = 195241620913920.

The previous prime is 400142020444079. The next prime is 400142020444129. The reversal of 400142020444102 is 201444020241004.

It is a happy number.

It is a super-2 number, since 2×400142020444102² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12912790123 + ... + 12912821110.

It is an arithmetic number, because the mean of its divisors is an integer number (38428509516192).

Almost surely, 2^{400142020444102} is an apocalyptic number.

400142020444102 is a deficient number, since it is larger than the sum of its proper divisors (214714131814970).

400142020444102 is a wasteful number, since it uses less digits than its factorization.

400142020444102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25825611423.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 400142020444102 its reverse (201444020241004), we get a palindrome (601586040685106).

The spelling of 400142020444102 in words is "four hundred trillion, one hundred forty-two billion, twenty million, four hundred forty-four thousand, one hundred two".