4905890 has 32 divisors (see below), whose sum is σ = 9749376. Its totient is φ = 1762560.

The previous prime is 4905869. The next prime is 4905899. The reversal of 4905890 is 985094.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 4905890.

It is not an unprimeable number, because it can be changed into a prime (4905899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11114 + ... + 11546.

It is an arithmetic number, because the mean of its divisors is an integer number (304668).

Almost surely, 2^4905890 is an apocalyptic number.

4905890 is a deficient number, since it is larger than the sum of its proper divisors (4843486).

4905890 is a wasteful number, since it uses less digits than its factorization.

4905890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 4905890 is about 2214.9243779416. The cubic root of 4905890 is about 169.9179534881.

The spelling of 4905890 in words is "four million, nine hundred five thousand, eight hundred ninety".