440208438 has 16 divisors (see below), whose sum is σ = 932206320. Its totient is φ = 138104576.

The previous prime is 440208437. The next prime is 440208443. The reversal of 440208438 is 834802044.

It is a junction number, because it is equal to n+sod(n) for n = 440208399 and 440208408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440208437) 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, 2157783 + ... + 2157986.

It is an arithmetic number, because the mean of its divisors is an integer number (58262895).

Almost surely, 2^440208438 is an apocalyptic number.

440208438 is an abundant number, since it is smaller than the sum of its proper divisors (491997882).

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

440208438 is a wasteful number, since it uses less digits than its factorization.

440208438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4315791.

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 440208438 is about 20981.1448210054. The cubic root of 440208438 is about 760.7105761929.

The spelling of 440208438 in words is "four hundred forty million, two hundred eight thousand, four hundred thirty-eight".