40756736 has 40 divisors (see below), whose sum is σ = 84999024. Its totient is φ = 19486720.

The previous prime is 40756717. The next prime is 40756741. The reversal of 40756736 is 63765704.

It is a super-2 number, since 2×40756736² = 3322223058747392, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40756736.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10046 + ... + 13506.

Almost surely, 2^40756736 is an apocalyptic number.

40756736 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40756736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42499512).

40756736 is an abundant number, since it is smaller than the sum of its proper divisors (44242288).

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

40756736 is an equidigital number, since it uses as much as digits as its factorization.

40756736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3502 (or 3486 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 40756736 is about 6384.1002498394. The cubic root of 40756736 is about 344.1383975306.

The spelling of 40756736 in words is "forty million, seven hundred fifty-six thousand, seven hundred thirty-six".