4640055 has 48 divisors (see below), whose sum is σ = 8864640. Its totient is φ = 2065728.

The previous prime is 4640017. The next prime is 4640057. The reversal of 4640055 is 5500464.

It is not a de Polignac number, because 4640055 - 2⁷ = 4639927 is a prime.

It is a super-2 number, since 2×4640055² = 43060220806050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4640057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43312 + ... + 43418.

It is an arithmetic number, because the mean of its divisors is an integer number (184680).

Almost surely, 2^4640055 is an apocalyptic number.

4640055 is a deficient number, since it is larger than the sum of its proper divisors (4224585).

4640055 is a wasteful number, since it uses less digits than its factorization.

4640055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 4640055 is about 2154.0786893705. The cubic root of 4640055 is about 166.7916773217.

The spelling of 4640055 in words is "four million, six hundred forty thousand, fifty-five".