40828641 has 16 divisors (see below), whose sum is σ = 62337024. Its totient is φ = 23284944.

The previous prime is 40828637. The next prime is 40828673. The reversal of 40828641 is 14682804.

It is not a de Polignac number, because 40828641 - 2² = 40828637 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40828691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11146 + ... + 14348.

It is an arithmetic number, because the mean of its divisors is an integer number (3896064).

Almost surely, 2^40828641 is an apocalyptic number.

It is an amenable number.

40828641 is a deficient number, since it is larger than the sum of its proper divisors (21508383).

40828641 is a wasteful number, since it uses less digits than its factorization.

40828641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820.

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 40828641 is about 6389.7293369907. The cubic root of 40828641 is about 344.3406604846.

The spelling of 40828641 in words is "forty million, eight hundred twenty-eight thousand, six hundred forty-one".