40018570 has 16 divisors (see below), whose sum is σ = 72304128. Its totient is φ = 15947280.

The previous prime is 40018567. The next prime is 40018577. The reversal of 40018570 is 7581004.

It is not an unprimeable number, because it can be changed into a prime (40018577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4674 + ... + 10093.

It is an arithmetic number, because the mean of its divisors is an integer number (4519008).

Almost surely, 2^40018570 is an apocalyptic number.

40018570 is a deficient number, since it is larger than the sum of its proper divisors (32285558).

40018570 is a wasteful number, since it uses less digits than its factorization.

40018570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15045.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 40018570 is about 6326.0232373901. The cubic root of 40018570 is about 342.0481049030.

Adding to 40018570 its reverse (7581004), we get a palindrome (47599574).

The spelling of 40018570 in words is "forty million, eighteen thousand, five hundred seventy".