4288505 has 16 divisors (see below), whose sum is σ = 5869584. Its totient is φ = 2979840.

The previous prime is 4288489. The next prime is 4288517. The reversal of 4288505 is 5058824.

It can be written as a sum of positive squares in 8 ways, for example, as 11881 + 4276624 = 109^2 + 2068^2 .

It is not a de Polignac number, because 4288505 - 2⁴ = 4288489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 836 + ... + 3045.

It is an arithmetic number, because the mean of its divisors is an integer number (366849).

Almost surely, 2^4288505 is an apocalyptic number.

It is an amenable number.

4288505 is a deficient number, since it is larger than the sum of its proper divisors (1581079).

4288505 is a wasteful number, since it uses less digits than its factorization.

4288505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3916.

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 4288505 is about 2070.8705898728. The cubic root of 4288505 is about 162.4683015094.

The spelling of 4288505 in words is "four million, two hundred eighty-eight thousand, five hundred five".