3640431106 has 8 divisors (see below), whose sum is σ = 5880696444. Its totient is φ = 1680198960.

The previous prime is 3640431083. The next prime is 3640431133. The reversal of 3640431106 is 6011340463.

It can be written as a sum of positive squares in 2 ways, for example, as 2758875625 + 881555481 = 52525^2 + 29691^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70008265 + ... + 70008316.

Almost surely, 2^3640431106 is an apocalyptic number.

3640431106 is a deficient number, since it is larger than the sum of its proper divisors (2240265338).

3640431106 is a wasteful number, since it uses less digits than its factorization.

3640431106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140016596.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 3640431106 is about 60335.9851663997. The cubic root of 3640431106 is about 1538.3350626722.

Adding to 3640431106 its reverse (6011340463), we get a palindrome (9651771569).

The spelling of 3640431106 in words is "three billion, six hundred forty million, four hundred thirty-one thousand, one hundred six".