40447260 has 144 divisors (see below), whose sum is σ = 143410176. Its totient is φ = 9035136.

The previous prime is 40447249. The next prime is 40447261. The reversal of 40447260 is 6274404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40447261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58879 + ... + 59561.

It is an arithmetic number, because the mean of its divisors is an integer number (995904).

Almost surely, 2^40447260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40447260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71705088).

40447260 is an abundant number, since it is smaller than the sum of its proper divisors (102962916).

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

40447260 is a wasteful number, since it uses less digits than its factorization.

40447260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752 (or 747 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 40447260 is about 6359.8160350752. The cubic root of 40447260 is about 343.2651407805.

The spelling of 40447260 in words is "forty million, four hundred forty-seven thousand, two hundred sixty".