440056431 has 24 divisors (see below), whose sum is σ = 643741280. Its totient is φ = 289656000.

The previous prime is 440056417. The next prime is 440056457. The reversal of 440056431 is 134650044.

It is not a de Polignac number, because 440056431 - 2⁷ = 440056303 is a prime.

It is a super-2 number, since 2×440056431² = 387299324928915522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 440056395 and 440056404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440056471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245085 + ... + 246873.

Almost surely, 2^440056431 is an apocalyptic number.

440056431 is a deficient number, since it is larger than the sum of its proper divisors (203684849).

440056431 is a wasteful number, since it uses less digits than its factorization.

440056431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127 (or 2124 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 440056431 is about 20977.5220414614. The cubic root of 440056431 is about 760.6230065820.

The spelling of 440056431 in words is "four hundred forty million, fifty-six thousand, four hundred thirty-one".