440350839 has 6 divisors (see below), whose sum is σ = 636062336. Its totient is φ = 293567220.

The previous prime is 440350817. The next prime is 440350891. The reversal of 440350839 is 938053044.

It is not a de Polignac number, because 440350839 - 2¹³ = 440342647 is a prime.

It is a super-2 number, since 2×440350839² = 387817722816007842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444350839) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24463927 + ... + 24463944.

Almost surely, 2^440350839 is an apocalyptic number.

440350839 is a deficient number, since it is larger than the sum of its proper divisors (195711497).

440350839 is a wasteful number, since it uses less digits than its factorization.

440350839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48927877 (or 48927874 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 440350839 is about 20984.5380935583. The cubic root of 440350839 is about 760.7925936032.

The spelling of 440350839 in words is "four hundred forty million, three hundred fifty thousand, eight hundred thirty-nine".