3640400001 has 12 divisors (see below), whose sum is σ = 6009549312. Its totient is φ = 2080228536.

The previous prime is 3640399999. The next prime is 3640400011. The reversal of 3640400001 is 1000040463.

It is not a de Polignac number, because 3640400001 - 2¹ = 3640399999 is a prime.

It is a super-3 number, since 3×3640400001³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3640400011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28892001 + ... + 28892126.

It is an arithmetic number, because the mean of its divisors is an integer number (500795776).

Almost surely, 2^3640400001 is an apocalyptic number.

It is an amenable number.

3640400001 is a deficient number, since it is larger than the sum of its proper divisors (2369149311).

3640400001 is a wasteful number, since it uses less digits than its factorization.

3640400001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57784140 (or 57784137 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3640400001 is about 60335.7274009355. The cubic root of 3640400001 is about 1538.3306813185.

Adding to 3640400001 its reverse (1000040463), we get a palindrome (4640440464).

The spelling of 3640400001 in words is "three billion, six hundred forty million, four hundred thousand, one".