40230645 has 32 divisors (see below), whose sum is σ = 79226112. Its totient is φ = 16975872.

The previous prime is 40230643. The next prime is 40230647. The reversal of 40230645 is 54603204.

It is an interprime number because it is at equal distance from previous prime (40230643) and next prime (40230647).

It is not a de Polignac number, because 40230645 - 2¹ = 40230643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40230643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13372 + ... + 16101.

It is an arithmetic number, because the mean of its divisors is an integer number (2475816).

Almost surely, 2^40230645 is an apocalyptic number.

It is an amenable number.

40230645 is a deficient number, since it is larger than the sum of its proper divisors (38995467).

40230645 is a wasteful number, since it uses less digits than its factorization.

40230645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29501.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 40230645 is about 6342.7631991113. The cubic root of 40230645 is about 342.6512589570.

Adding to 40230645 its reverse (54603204), we get a palindrome (94833849).

The spelling of 40230645 in words is "forty million, two hundred thirty thousand, six hundred forty-five".