40756518 has 48 divisors (see below), whose sum is σ = 98594496. Its totient is φ = 12060720.

The previous prime is 40756511. The next prime is 40756553. The reversal of 40756518 is 81565704.

It is a super-2 number, since 2×40756518² = 3322187518968648, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40756511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6121 + ... + 10907.

It is an arithmetic number, because the mean of its divisors is an integer number (2054052).

Almost surely, 2^40756518 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40756518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49297248).

40756518 is an abundant number, since it is smaller than the sum of its proper divisors (57837978).

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

40756518 is a wasteful number, since it uses less digits than its factorization.

40756518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4849 (or 4846 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 40756518 is about 6384.0831761499. The cubic root of 40756518 is about 344.1377839527.

The spelling of 40756518 in words is "forty million, seven hundred fifty-six thousand, five hundred eighteen".