40118733 has 20 divisors (see below), whose sum is σ = 60287040. Its totient is φ = 26586792.

The previous prime is 40118731. The next prime is 40118753. The reversal of 40118733 is 33781104.

It is not a de Polignac number, because 40118733 - 2¹ = 40118731 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40118697 and 40118706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40118731) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13116 + ... + 15882.

It is an arithmetic number, because the mean of its divisors is an integer number (3014352).

Almost surely, 2^40118733 is an apocalyptic number.

It is an amenable number.

40118733 is a deficient number, since it is larger than the sum of its proper divisors (20168307).

40118733 is a wasteful number, since it uses less digits than its factorization.

40118733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2958 (or 2949 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 40118733 is about 6333.9350328212. The cubic root of 40118733 is about 342.3332393650. Note that the first 3 decimals are identical.

Adding to 40118733 its reverse (33781104), we get a palindrome (73899837).

The spelling of 40118733 in words is "forty million, one hundred eighteen thousand, seven hundred thirty-three".