4640440402 has 16 divisors (see below), whose sum is σ = 7497891072. Its totient is φ = 2141228880.

The previous prime is 4640440367. The next prime is 4640440403. The reversal of 4640440402 is 2040440464.

It is not an unprimeable number, because it can be changed into a prime (4640440403) 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, 102943 + ... + 140989.

It is an arithmetic number, because the mean of its divisors is an integer number (468618192).

Almost surely, 2^4640440402 is an apocalyptic number.

4640440402 is a deficient number, since it is larger than the sum of its proper divisors (2857450670).

4640440402 is a wasteful number, since it uses less digits than its factorization.

4640440402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42753.

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 4640440402 is about 68120.7780489918. The cubic root of 4640440402 is about 1667.9629508781.

Adding to 4640440402 its reverse (2040440464), we get a palindrome (6680880866).

The spelling of 4640440402 in words is "four billion, six hundred forty million, four hundred forty thousand, four hundred two".