35640245 has 8 divisors (see below), whose sum is σ = 45284184. Its totient is φ = 26834944.

The previous prime is 35640239. The next prime is 35640247. The reversal of 35640245 is 54204653.

It can be written as a sum of positive squares in 4 ways, for example, as 487204 + 35153041 = 698^2 + 5929^2 .

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 35640245 - 2¹⁰ = 35639221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35640247) 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, 209564 + ... + 209733.

It is an arithmetic number, because the mean of its divisors is an integer number (5660523).

Almost surely, 2^35640245 is an apocalyptic number.

It is an amenable number.

35640245 is a deficient number, since it is larger than the sum of its proper divisors (9643939).

35640245 is a wasteful number, since it uses less digits than its factorization.

35640245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419319.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 35640245 is about 5969.9451421265. The cubic root of 35640245 is about 329.0891472282.

Adding to 35640245 its reverse (54204653), we get a palindrome (89844898).

The spelling of 35640245 in words is "thirty-five million, six hundred forty thousand, two hundred forty-five".