400004034 has 8 divisors (see below), whose sum is σ = 800008080. Its totient is φ = 133334676.

The previous prime is 400004029. The next prime is 400004071. The reversal of 400004034 is 430400004.

It is a sphenic number, since it is the product of 3 distinct primes.

400004034 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33333664 + ... + 33333675.

It is an arithmetic number, because the mean of its divisors is an integer number (100001010).

Almost surely, 2^400004034 is an apocalyptic number.

400004034 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.

400004034 is a wasteful number, since it uses less digits than its factorization.

400004034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66667344.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 400004034 is about 20000.1008497457. The cubic root of 400004034 is about 736.8087766169.

Adding to 400004034 its reverse (430400004), we get a palindrome (830404038).

The spelling of 400004034 in words is "four hundred million, four thousand, thirty-four".