400072334 has 8 divisors (see below), whose sum is σ = 600887160. Its totient is φ = 199776616.

The previous prime is 400072307. The next prime is 400072357. The reversal of 400072334 is 433270004.

It is a happy number.

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

It is a congruent 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, 127844 + ... + 130935.

It is an arithmetic number, because the mean of its divisors is an integer number (75110895).

Almost surely, 2^400072334 is an apocalyptic number.

400072334 is a deficient number, since it is larger than the sum of its proper divisors (200814826).

400072334 is a wasteful number, since it uses less digits than its factorization.

400072334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259554.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 400072334 is about 20001.8082682541. The cubic root of 400072334 is about 736.8507105069.

The spelling of 400072334 in words is "four hundred million, seventy-two thousand, three hundred thirty-four".