3909045 has 32 divisors (see below), whose sum is σ = 7280640. Its totient is φ = 1753920.

The previous prime is 3909043. The next prime is 3909049. The reversal of 3909045 is 5409093.

It is not a de Polignac number, because 3909045 - 2¹ = 3909043 is a prime.

3909045 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3909043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5880 + ... + 6510.

It is an arithmetic number, because the mean of its divisors is an integer number (227520).

Almost surely, 2^3909045 is an apocalyptic number.

3909045 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3909045 is a deficient number, since it is larger than the sum of its proper divisors (3371595).

3909045 is a wasteful number, since it uses less digits than its factorization.

3909045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 3909045 is about 1977.1304964519. The cubic root of 3909045 is about 157.5276847278.

The spelling of 3909045 in words is "three million, nine hundred nine thousand, forty-five".