440013426 has 16 divisors (see below), whose sum is σ = 880447104. Its totient is φ = 146601104.

The previous prime is 440013421. The next prime is 440013451. The reversal of 440013426 is 624310044.

It is a super-2 number, since 2×440013426² = 387223630120514952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 440013396 and 440013405.

It is not an unprimeable number, because it can be changed into a prime (440013421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2970 + ... + 29813.

It is an arithmetic number, because the mean of its divisors is an integer number (55027944).

Almost surely, 2^440013426 is an apocalyptic number.

440013426 is an abundant number, since it is smaller than the sum of its proper divisors (440433678).

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

440013426 is a wasteful number, since it uses less digits than its factorization.

440013426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35025.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 440013426 is about 20976.4969906798. The cubic root of 440013426 is about 760.5982282008.

The spelling of 440013426 in words is "four hundred forty million, thirteen thousand, four hundred twenty-six".