40447488 has 80 divisors (see below), whose sum is σ = 114166800. Its totient is φ = 12681216.

The previous prime is 40447483. The next prime is 40447507. The reversal of 40447488 is 88474404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40447483) 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, 25338 + ... + 26886.

It is an arithmetic number, because the mean of its divisors is an integer number (1427085).

Almost surely, 2^40447488 is an apocalyptic number.

40447488 is a gapful number since it is divisible by the number (48) 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 40447488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57083400).

40447488 is an abundant number, since it is smaller than the sum of its proper divisors (73719312).

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

40447488 is a wasteful number, since it uses less digits than its factorization.

40447488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587 (or 1571 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 39.

The square root of 40447488 is about 6359.8339600968. The cubic root of 40447488 is about 343.2657857710.

The spelling of 40447488 in words is "forty million, four hundred forty-seven thousand, four hundred eighty-eight".