440337138 has 16 divisors (see below), whose sum is σ = 884626176. Its totient is φ = 146120400.

The previous prime is 440337137. The next prime is 440337143. The reversal of 440337138 is 831733044.

It is a junction number, because it is equal to n+sod(n) for n = 440337099 and 440337108.

It is not an unprimeable number, because it can be changed into a prime (440337133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163213 + ... + 165888.

It is an arithmetic number, because the mean of its divisors is an integer number (55289136).

Almost surely, 2^440337138 is an apocalyptic number.

440337138 is an abundant number, since it is smaller than the sum of its proper divisors (444289038).

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

440337138 is a wasteful number, since it uses less digits than its factorization.

440337138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329329.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 440337138 is about 20984.2116363708. The cubic root of 440337138 is about 760.7847031315.

The spelling of 440337138 in words is "four hundred forty million, three hundred thirty-seven thousand, one hundred thirty-eight".