4645640406 has 64 divisors (see below), whose sum is σ = 10257373440. Its totient is φ = 1390986240.

The previous prime is 4645640369. The next prime is 4645640437. The reversal of 4645640406 is 6040465464.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3049561 + ... + 3051083.

It is an arithmetic number, because the mean of its divisors is an integer number (160271460).

Almost surely, 2^4645640406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4645640406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5128686720).

4645640406 is an abundant number, since it is smaller than the sum of its proper divisors (5611733034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4645640406 is a wasteful number, since it uses less digits than its factorization.

4645640406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061.

The product of its (nonzero) digits is 276480, while the sum is 39.

The square root of 4645640406 is about 68158.9348948471. The cubic root of 4645640406 is about 1668.5857492562.

The spelling of 4645640406 in words is "four billion, six hundred forty-five million, six hundred forty thousand, four hundred six".