40230947 has 4 divisors (see below), whose sum is σ = 40301976. Its totient is φ = 40159920.

The previous prime is 40230913. The next prime is 40230973. The reversal of 40230947 is 74903204.

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 40230947 - 2¹⁰ = 40229923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40230247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34658 + ... + 35799.

It is an arithmetic number, because the mean of its divisors is an integer number (10075494).

Almost surely, 2^40230947 is an apocalyptic number.

40230947 is a deficient number, since it is larger than the sum of its proper divisors (71029).

40230947 is an equidigital number, since it uses as much as digits as its factorization.

40230947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71028.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 40230947 is about 6342.7870057255. The cubic root of 40230947 is about 342.6521163500.

The spelling of 40230947 in words is "forty million, two hundred thirty thousand, nine hundred forty-seven".