40447560 has 128 divisors (see below), whose sum is σ = 127733760. Its totient is φ = 10233600.

The previous prime is 40447543. The next prime is 40447601. The reversal of 40447560 is 6574404.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 308695 + ... + 308825.

It is an arithmetic number, because the mean of its divisors is an integer number (997920).

Almost surely, 2^40447560 is an apocalyptic number.

40447560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40447560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63866880).

40447560 is an abundant number, since it is smaller than the sum of its proper divisors (87286200).

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

40447560 is a wasteful number, since it uses less digits than its factorization.

40447560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 40447560 is about 6359.8396206194. The cubic root of 40447560 is about 343.2659894518.

The spelling of 40447560 in words is "forty million, four hundred forty-seven thousand, five hundred sixty".