40394552 has 16 divisors (see below), whose sum is σ = 82625400. Its totient is φ = 18361120.

The previous prime is 40394539. The next prime is 40394591. The reversal of 40394552 is 25549304.

It is a happy number.

40394552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229427 + ... + 229602.

Almost surely, 2^40394552 is an apocalyptic number.

It is an amenable number.

40394552 is an abundant number, since it is smaller than the sum of its proper divisors (42230848).

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

40394552 is a wasteful number, since it uses less digits than its factorization.

40394552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459046 (or 459042 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 40394552 is about 6355.6708536550. The cubic root of 40394552 is about 343.1159697049.

The spelling of 40394552 in words is "forty million, three hundred ninety-four thousand, five hundred fifty-two".