4249905 has 32 divisors (see below), whose sum is σ = 7603200. Its totient is φ = 2009280.

The previous prime is 4249897. The next prime is 4249913. The reversal of 4249905 is 5099424.

It is an interprime number because it is at equal distance from previous prime (4249897) and next prime (4249913).

It is not a de Polignac number, because 4249905 - 2³ = 4249897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6796 + ... + 7394.

It is an arithmetic number, because the mean of its divisors is an integer number (237600).

Almost surely, 2^4249905 is an apocalyptic number.

It is an amenable number.

4249905 is a deficient number, since it is larger than the sum of its proper divisors (3353295).

4249905 is a wasteful number, since it uses less digits than its factorization.

4249905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 4249905 is about 2061.5297717957. The cubic root of 4249905 is about 161.9793831407.

The spelling of 4249905 in words is "four million, two hundred forty-nine thousand, nine hundred five".