440129834 has 16 divisors (see below), whose sum is σ = 686399616. Its totient is φ = 211490400.

The previous prime is 440129801. The next prime is 440129843. The reversal of 440129834 is 438921044.

It is a junction number, because it is equal to n+sod(n) for n = 440129794 and 440129803.

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, 34562 + ... + 45549.

It is an arithmetic number, because the mean of its divisors is an integer number (42899976).

Almost surely, 2^440129834 is an apocalyptic number.

440129834 is a deficient number, since it is larger than the sum of its proper divisors (246269782).

440129834 is a wasteful number, since it uses less digits than its factorization.

440129834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80221.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 440129834 is about 20979.2715316810. The cubic root of 440129834 is about 760.6652957845.

The spelling of 440129834 in words is "four hundred forty million, one hundred twenty-nine thousand, eight hundred thirty-four".