40472147 has 8 divisors (see below), whose sum is σ = 42700800. Its totient is φ = 38253384.

The previous prime is 40472119. The next prime is 40472161. The reversal of 40472147 is 74127404.

40472147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40472147 - 2⁸ = 40471891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40472347) 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 7 ways as a sum of consecutive naturals, for example, 6878 + ... + 11324.

It is an arithmetic number, because the mean of its divisors is an integer number (5337600).

Almost surely, 2^40472147 is an apocalyptic number.

40472147 is a deficient number, since it is larger than the sum of its proper divisors (2228653).

40472147 is a wasteful number, since it uses less digits than its factorization.

40472147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4945.

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 40472147 is about 6361.7723159510. The cubic root of 40472147 is about 343.3355294630.

The spelling of 40472147 in words is "forty million, four hundred seventy-two thousand, one hundred forty-seven".