40118742 has 48 divisors (see below), whose sum is σ = 94208400. Its totient is φ = 12289536.

The previous prime is 40118731. The next prime is 40118753. The reversal of 40118742 is 24781104.

It is an interprime number because it is at equal distance from previous prime (40118731) and next prime (40118753).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11634 + ... + 14682.

It is an arithmetic number, because the mean of its divisors is an integer number (1962675).

Almost surely, 2^40118742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40118742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47104200).

40118742 is an abundant number, since it is smaller than the sum of its proper divisors (54089658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40118742 is a wasteful number, since it uses less digits than its factorization.

40118742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3117 (or 3114 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 40118742 is about 6333.9357432800. The cubic root of 40118742 is about 342.3332649640. Note that the first 3 decimals are identical.

Adding to 40118742 its reverse (24781104), we get a palindrome (64899846).

The spelling of 40118742 in words is "forty million, one hundred eighteen thousand, seven hundred forty-two".