40447632 has 40 divisors (see below), whose sum is σ = 106057696. Its totient is φ = 13280256.

The previous prime is 40447601. The next prime is 40447633. The reversal of 40447632 is 23674404.

It is a self number, because there is not a number n which added to its sum of digits gives 40447632.

It is not an unprimeable number, because it can be changed into a prime (40447633) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3073 + ... + 9504.

Almost surely, 2^40447632 is an apocalyptic number.

It is an amenable number.

40447632 is an abundant number, since it is smaller than the sum of its proper divisors (65610064).

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

40447632 is a wasteful number, since it uses less digits than its factorization.

40447632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12655 (or 12649 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 30.

The square root of 40447632 is about 6359.8452811370. The cubic root of 40447632 is about 343.2661931323.

The spelling of 40447632 in words is "forty million, four hundred forty-seven thousand, six hundred thirty-two".