400134042304 has 56 divisors (see below), whose sum is σ = 807192086400. Its totient is φ = 196748359680.

The previous prime is 400134042271. The next prime is 400134042307. The reversal of 400134042304 is 403240431004.

It is not an unprimeable number, because it can be changed into a prime (400134042307) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 39343332 + ... + 39353500.

It is an arithmetic number, because the mean of its divisors is an integer number (14414144400).

Almost surely, 2^400134042304 is an apocalyptic number.

It is an amenable number.

400134042304 is an abundant number, since it is smaller than the sum of its proper divisors (407058044096).

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

400134042304 is a wasteful number, since it uses less digits than its factorization.

400134042304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20321 (or 20311 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 400134042304 its reverse (403240431004), we get a palindrome (803374473308).

The spelling of 400134042304 in words is "four hundred billion, one hundred thirty-four million, forty-two thousand, three hundred four".