40018935 has 48 divisors (see below), whose sum is σ = 74577888. Its totient is φ = 18247680.

The previous prime is 40018931. The next prime is 40018943. The reversal of 40018935 is 53981004.

It is not a de Polignac number, because 40018935 - 2² = 40018931 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40018931) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30207 + ... + 31503.

It is an arithmetic number, because the mean of its divisors is an integer number (1553706).

Almost surely, 2^40018935 is an apocalyptic number.

40018935 is a deficient number, since it is larger than the sum of its proper divisors (34558953).

40018935 is a wasteful number, since it uses less digits than its factorization.

40018935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344 (or 1333 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 40018935 is about 6326.0520864122. The cubic root of 40018935 is about 342.0491448134.

Adding to 40018935 its reverse (53981004), we get a palindrome (93999939).

The spelling of 40018935 in words is "forty million, eighteen thousand, nine hundred thirty-five".