400034044 has 24 divisors (see below), whose sum is σ = 723542400. Its totient is φ = 193323840.

The previous prime is 400034039. The next prime is 400034053. The reversal of 400034044 is 440430004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136062 + ... + 138970.

It is an arithmetic number, because the mean of its divisors is an integer number (30147600).

Almost surely, 2^400034044 is an apocalyptic number.

It is an amenable number.

400034044 is a deficient number, since it is larger than the sum of its proper divisors (323508356).

400034044 is a wasteful number, since it uses less digits than its factorization.

400034044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4053 (or 4051 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 400034044 is about 20000.8510818915. The cubic root of 400034044 is about 736.8272023298.

Adding to 400034044 its reverse (440430004), we get a palindrome (840464048).

The spelling of 400034044 in words is "four hundred million, thirty-four thousand, forty-four".