400336734 has 16 divisors (see below), whose sum is σ = 915055488. Its totient is φ = 114381912.

The previous prime is 400336693. The next prime is 400336747. The reversal of 400336734 is 437633004.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 4765872 + ... + 4765955.

It is an arithmetic number, because the mean of its divisors is an integer number (57190968).

Almost surely, 2^400336734 is an apocalyptic number.

400336734 is an abundant number, since it is smaller than the sum of its proper divisors (514718754).

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

400336734 is a wasteful number, since it uses less digits than its factorization.

400336734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9531839.

The product of its (nonzero) digits is 18144, while the sum is 30.

The square root of 400336734 is about 20008.4165790299. The cubic root of 400336734 is about 737.0129981807.

Adding to 400336734 its reverse (437633004), we get a palindrome (837969738).

The spelling of 400336734 in words is "four hundred million, three hundred thirty-six thousand, seven hundred thirty-four".