440122494 has 64 divisors (see below), whose sum is σ = 1032113664. Its totient is φ = 122518656.

The previous prime is 440122493. The next prime is 440122499. The reversal of 440122494 is 494221044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440122493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 362232 + ... + 363444.

It is an arithmetic number, because the mean of its divisors is an integer number (16126776).

Almost surely, 2^440122494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440122494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (516056832).

440122494 is an abundant number, since it is smaller than the sum of its proper divisors (591991170).

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

440122494 is a wasteful number, since it uses less digits than its factorization.

440122494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 440122494 is about 20979.0965963742. The cubic root of 440122494 is about 760.6610672487.

The spelling of 440122494 in words is "four hundred forty million, one hundred twenty-two thousand, four hundred ninety-four".