40652641 has 2 divisors, whose sum is σ = 40652642. Its totient is φ = 40652640.

The previous prime is 40652639. The next prime is 40652659. The reversal of 40652641 is 14625604.

40652641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32444416 + 8208225 = 5696^2 + 2865^2 .

It is a cyclic number.

It is not a de Polignac number, because 40652641 - 2¹ = 40652639 is a prime.

Together with 40652639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40652621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20326320 + 20326321.

It is an arithmetic number, because the mean of its divisors is an integer number (20326321).

Almost surely, 2^40652641 is an apocalyptic number.

40652641 is the 4033-rd centered pentagonal number.

It is an amenable number.

40652641 is a deficient number, since it is larger than the sum of its proper divisors (1).

40652641 is an equidigital number, since it uses as much as digits as its factorization.

40652641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 40652641 is about 6375.9423617219. The cubic root of 40652641 is about 343.8451647924.

The spelling of 40652641 in words is "forty million, six hundred fifty-two thousand, six hundred forty-one".