440679838 has 4 divisors (see below), whose sum is σ = 661019760. Its totient is φ = 220339918.

The previous prime is 440679823. The next prime is 440679859. The reversal of 440679838 is 838976044.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 440679791 and 440679800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110169958 + ... + 110169961.

It is an arithmetic number, because the mean of its divisors is an integer number (165254940).

Almost surely, 2^440679838 is an apocalyptic number.

440679838 is a deficient number, since it is larger than the sum of its proper divisors (220339922).

440679838 is a wasteful number, since it uses less digits than its factorization.

440679838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220339921.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 440679838 is about 20992.3757111957. The cubic root of 440679838 is about 760.9820165744.

The spelling of 440679838 in words is "four hundred forty million, six hundred seventy-nine thousand, eight hundred thirty-eight".