4915090 has 16 divisors (see below), whose sum is σ = 8969688. Its totient is φ = 1938816.

The previous prime is 4915067. The next prime is 4915093. The reversal of 4915090 is 905194.

It is a Cunningham number, because it is equal to 2217²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 4888521 + 26569 = 2211^2 + 163^2 .

It is not an unprimeable number, because it can be changed into a prime (4915093) 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, 2637 + ... + 4096.

Almost surely, 2^4915090 is an apocalyptic number.

4915090 is a deficient number, since it is larger than the sum of its proper divisors (4054598).

4915090 is a wasteful number, since it uses less digits than its factorization.

4915090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6813.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 4915090 is about 2217.0002255300. Note that the first 3 decimals coincide. The cubic root of 4915090 is about 170.0241026956.

The spelling of 4915090 in words is "four million, nine hundred fifteen thousand, ninety".