35640043 has 8 divisors (see below), whose sum is σ = 37475280. Its totient is φ = 33845280.

The previous prime is 35640037. The next prime is 35640089. The reversal of 35640043 is 34004653.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35640043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (35640343) 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, 8305 + ... + 11842.

It is an arithmetic number, because the mean of its divisors is an integer number (4684410).

Almost surely, 2^35640043 is an apocalyptic number.

35640043 is a deficient number, since it is larger than the sum of its proper divisors (1835237).

35640043 is a wasteful number, since it uses less digits than its factorization.

35640043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20237.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 35640043 is about 5969.9282240241. The cubic root of 35640043 is about 329.0885254953.

Adding to 35640043 its reverse (34004653), we get a palindrome (69644696).

The spelling of 35640043 in words is "thirty-five million, six hundred forty thousand, forty-three".