40023147 has 8 divisors (see below), whose sum is σ = 53663040. Its totient is φ = 26532680.

The previous prime is 40023143. The next prime is 40023149. The reversal of 40023147 is 74132004.

40023147 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 a cyclic number.

It is not a de Polignac number, because 40023147 - 2² = 40023143 is a prime.

It is a super-3 number, since 3×40023147³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (40023143) 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, 36729 + ... + 37802.

It is an arithmetic number, because the mean of its divisors is an integer number (6707880).

Almost surely, 2^40023147 is an apocalyptic number.

40023147 is a deficient number, since it is larger than the sum of its proper divisors (13639893).

40023147 is a wasteful number, since it uses less digits than its factorization.

40023147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74713.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 40023147 is about 6326.3849867045. The cubic root of 40023147 is about 342.0611446368.

The spelling of 40023147 in words is "forty million, twenty-three thousand, one hundred forty-seven".