40656726 has 48 divisors (see below), whose sum is σ = 96949008. Its totient is φ = 12312960.

The previous prime is 40656703. The next prime is 40656727. The reversal of 40656726 is 62765604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40656727) 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, 23110 + ... + 24806.

It is an arithmetic number, because the mean of its divisors is an integer number (2019771).

Almost surely, 2^40656726 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40656726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48474504).

40656726 is an abundant number, since it is smaller than the sum of its proper divisors (56292282).

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

40656726 is a wasteful number, since it uses less digits than its factorization.

40656726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738 (or 1713 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 40656726 is about 6376.2626984778. The cubic root of 40656726 is about 343.8566815550.

The spelling of 40656726 in words is "forty million, six hundred fifty-six thousand, seven hundred twenty-six".