40743641 has 8 divisors (see below), whose sum is σ = 42163968. Its totient is φ = 39330000.

The previous prime is 40743617. The next prime is 40743673. The reversal of 40743641 is 14634704.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40743641 - 2¹⁰ = 40742617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40743601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12866 + ... + 15716.

It is an arithmetic number, because the mean of its divisors is an integer number (5270496).

Almost surely, 2^40743641 is an apocalyptic number.

It is an amenable number.

40743641 is a deficient number, since it is larger than the sum of its proper divisors (1420327).

40743641 is a wasteful number, since it uses less digits than its factorization.

40743641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3343.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 40743641 is about 6383.0745726491. The cubic root of 40743641 is about 344.1015367522.

The spelling of 40743641 in words is "forty million, seven hundred forty-three thousand, six hundred forty-one".