40291470 has 24 divisors (see below), whose sum is σ = 104758056. Its totient is φ = 10744368.

The previous prime is 40291451. The next prime is 40291477. The reversal of 40291470 is 7419204.

It is a happy number.

40291470 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 not an unprimeable number, because it can be changed into a prime (40291477) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 223752 + ... + 223931.

It is an arithmetic number, because the mean of its divisors is an integer number (4364919).

Almost surely, 2^40291470 is an apocalyptic number.

40291470 is an abundant number, since it is smaller than the sum of its proper divisors (64466586).

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

40291470 is a wasteful number, since it uses less digits than its factorization.

40291470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447696 (or 447693 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 40291470 is about 6347.5562226734. The cubic root of 40291470 is about 342.8238576318.

The spelling of 40291470 in words is "forty million, two hundred ninety-one thousand, four hundred seventy".