940065641 has 16 divisors (see below), whose sum is σ = 1000334400. Its totient is φ = 880927488.

The previous prime is 940065617. The next prime is 940065661. The reversal of 940065641 is 146560049.

It is a cyclic number.

It is not a de Polignac number, because 940065641 - 2¹⁰ = 940064617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (940065661) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1064186 + ... + 1065068.

It is an arithmetic number, because the mean of its divisors is an integer number (62520900).

Almost surely, 2^940065641 is an apocalyptic number.

It is an amenable number.

940065641 is a deficient number, since it is larger than the sum of its proper divisors (60268759).

940065641 is a wasteful number, since it uses less digits than its factorization.

940065641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 940065641 is about 30660.4899015003. The cubic root of 940065641 is about 979.6089099620.

The spelling of 940065641 in words is "nine hundred forty million, sixty-five thousand, six hundred forty-one".