400021342014 has 64 divisors (see below), whose sum is σ = 954962496000. Its totient is φ = 109318025088.

The previous prime is 400021341899. The next prime is 400021342027. The reversal of 400021342014 is 410243120004.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2089789 + ... + 2273160.

It is an arithmetic number, because the mean of its divisors is an integer number (14921289000).

Almost surely, 2^400021342014 is an apocalyptic number.

400021342014 is an abundant number, since it is smaller than the sum of its proper divisors (554941153986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400021342014 is a wasteful number, since it uses less digits than its factorization.

400021342014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4363057.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 400021342014 its reverse (410243120004), we get a palindrome (810264462018).

The spelling of 400021342014 in words is "four hundred billion, twenty-one million, three hundred forty-two thousand, fourteen".