40030145 has 16 divisors (see below), whose sum is σ = 50803200. Its totient is φ = 30230400.

The previous prime is 40030127. The next prime is 40030157. The reversal of 40030145 is 54103004.

40030145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-40030145 is a prime.

It is an unprimeable number.

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, 3206 + ... + 9504.

It is an arithmetic number, because the mean of its divisors is an integer number (3175200).

Almost surely, 2^40030145 is an apocalyptic number.

It is an amenable number.

40030145 is a deficient number, since it is larger than the sum of its proper divisors (10773055).

40030145 is a wasteful number, since it uses less digits than its factorization.

40030145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6376.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 40030145 is about 6326.9380430031. The cubic root of 40030145 is about 342.0810798041.

Adding to 40030145 its reverse (54103004), we get a palindrome (94133149).

The spelling of 40030145 in words is "forty million, thirty thousand, one hundred forty-five".