40570023 has 16 divisors (see below), whose sum is σ = 58720256. Its totient is φ = 24766560.

The previous prime is 40570021. The next prime is 40570037. The reversal of 40570023 is 32007504.

It is a happy number.

40570023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40570023 - 2¹ = 40570021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40570021) 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 15 ways as a sum of consecutive naturals, for example, 858 + ... + 9048.

It is an arithmetic number, because the mean of its divisors is an integer number (3670016).

Almost surely, 2^40570023 is an apocalyptic number.

40570023 is a deficient number, since it is larger than the sum of its proper divisors (18150233).

40570023 is a wasteful number, since it uses less digits than its factorization.

40570023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8334.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 40570023 is about 6369.4601812085. The cubic root of 40570023 is about 343.6120756647.

Adding to 40570023 its reverse (32007504), we get a palindrome (72577527).

The spelling of 40570023 in words is "forty million, five hundred seventy thousand, twenty-three".