40641696 has 96 divisors (see below), whose sum is σ = 125556480. Its totient is φ = 12745728.

The previous prime is 40641661. The next prime is 40641709. The reversal of 40641696 is 69614604.

40641696 is a `hidden beast` number, since 4 + 0 + 641 + 6 + 9 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 40641696.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13305 + ... + 16071.

It is an arithmetic number, because the mean of its divisors is an integer number (1307880).

Almost surely, 2^40641696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40641696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62778240).

40641696 is an abundant number, since it is smaller than the sum of its proper divisors (84914784).

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

40641696 is a wasteful number, since it uses less digits than its factorization.

40641696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803 (or 2789 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 40641696 is about 6375.0839994466. The cubic root of 40641696 is about 343.8143039591.

The spelling of 40641696 in words is "forty million, six hundred forty-one thousand, six hundred ninety-six".