40066147 has 4 divisors (see below), whose sum is σ = 43708536. Its totient is φ = 36423760.

The previous prime is 40066099. The next prime is 40066151. The reversal of 40066147 is 74166004.

40066147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40066147 - 2¹¹ = 40064099 is a prime.

It is a super-2 number, since 2×40066147² = 3210592270851218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40066177) 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 3 ways as a sum of consecutive naturals, for example, 1821178 + ... + 1821199.

It is an arithmetic number, because the mean of its divisors is an integer number (10927134).

Almost surely, 2^40066147 is an apocalyptic number.

40066147 is a deficient number, since it is larger than the sum of its proper divisors (3642389).

40066147 is a wasteful number, since it uses less digits than its factorization.

40066147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3642388.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 40066147 is about 6329.7825397086. The cubic root of 40066147 is about 342.1836018140.

It can be divided in two parts, 4006 and 6147, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 40066147 in words is "forty million, sixty-six thousand, one hundred forty-seven".