440449540 has 24 divisors (see below), whose sum is σ = 965160000. Its totient is φ = 168519648.

The previous prime is 440449501. The next prime is 440449547. The reversal of 440449540 is 45944044.

It is a junction number, because it is equal to n+sod(n) for n = 440449496 and 440449505.

It is not an unprimeable number, because it can be changed into a prime (440449547) 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, 478290 + ... + 479209.

It is an arithmetic number, because the mean of its divisors is an integer number (40215000).

Almost surely, 2^440449540 is an apocalyptic number.

It is an amenable number.

440449540 is an abundant number, since it is smaller than the sum of its proper divisors (524710460).

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

440449540 is a wasteful number, since it uses less digits than its factorization.

440449540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957531 (or 957529 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 440449540 is about 20986.8897171544. The cubic root of 440449540 is about 760.8494311468.

The spelling of 440449540 in words is "four hundred forty million, four hundred forty-nine thousand, five hundred forty".