400021847334 has 24 divisors (see below), whose sum is σ = 917697179880. Its totient is φ = 125497050048.

The previous prime is 400021847321. The next prime is 400021847347. The reversal of 400021847334 is 433748120004.

400021847334 is a `hidden beast` number, since 400 + 0 + 2 + 184 + 73 + 3 + 4 = 666.

400021847334 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (400021847321) and next prime (400021847347).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 653630164 + ... + 653630775.

It is an arithmetic number, because the mean of its divisors is an integer number (38237382495).

Almost surely, 2^400021847334 is an apocalyptic number.

400021847334 is an abundant number, since it is smaller than the sum of its proper divisors (517675332546).

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

400021847334 is a wasteful number, since it uses less digits than its factorization.

400021847334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307260964 (or 1307260961 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

Adding to 400021847334 its reverse (433748120004), we get a palindrome (833769967338).

The spelling of 400021847334 in words is "four hundred billion, twenty-one million, eight hundred forty-seven thousand, three hundred thirty-four".