440670040 has 32 divisors (see below), whose sum is σ = 1043694000. Its totient is φ = 166990464.

The previous prime is 440670029. The next prime is 440670047. The reversal of 440670040 is 40076044.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 440669987 and 440670014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440670047) 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, 289155 + ... + 290674.

Almost surely, 2^440670040 is an apocalyptic number.

440670040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440670040 is an abundant number, since it is smaller than the sum of its proper divisors (603023960).

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

440670040 is a wasteful number, since it uses less digits than its factorization.

440670040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579859 (or 579855 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 440670040 is about 20992.1423394564. The cubic root of 440670040 is about 760.9763766846.

The spelling of 440670040 in words is "four hundred forty million, six hundred seventy thousand, forty".