404472729 has 16 divisors (see below), whose sum is σ = 548843904. Its totient is φ = 264902400.

The previous prime is 404472727. The next prime is 404472743. The reversal of 404472729 is 927274404.

It is not a de Polignac number, because 404472729 - 2¹ = 404472727 is a prime.

It is not an unprimeable number, because it can be changed into a prime (404472727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59169 + ... + 65649.

It is an arithmetic number, because the mean of its divisors is an integer number (34302744).

Almost surely, 2^404472729 is an apocalyptic number.

It is an amenable number.

404472729 is a deficient number, since it is larger than the sum of its proper divisors (144371175).

404472729 is a wasteful number, since it uses less digits than its factorization.

404472729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6848.

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 404472729 is about 20111.5073776184. The cubic root of 404472729 is about 739.5424057978.

The spelling of 404472729 in words is "four hundred four million, four hundred seventy-two thousand, seven hundred twenty-nine".