400334344004 has 12 divisors (see below), whose sum is σ = 800668688064. Its totient is φ = 171571861704.

The previous prime is 400334344001. The next prime is 400334344009. The reversal of 400334344004 is 400443433004.

400334344004 is an admirable number.

It is a super-2 number, since 2×400334344004² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (400334344001) 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, 7148827544 + ... + 7148827599.

It is an arithmetic number, because the mean of its divisors is an integer number (66722390672).

Almost surely, 2^400334344004 is an apocalyptic number.

It is an amenable number.

400334344004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

400334344004 is a wasteful number, since it uses less digits than its factorization.

400334344004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14297655154 (or 14297655152 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 29.

Adding to 400334344004 its reverse (400443433004), we get a palindrome (800777777008).

The spelling of 400334344004 in words is "four hundred billion, three hundred thirty-four million, three hundred forty-four thousand, four".