3490945 has 8 divisors (see below), whose sum is σ = 4291560. Its totient is φ = 2724480.

The previous prime is 3490939. The next prime is 3490957. The reversal of 3490945 is 5490943.

It can be written as a sum of positive squares in 4 ways, for example, as 138384 + 3352561 = 372^2 + 1831^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3490945 - 2³ = 3490937 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 3490945.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8310 + ... + 8719.

It is an arithmetic number, because the mean of its divisors is an integer number (536445).

Almost surely, 2^3490945 is an apocalyptic number.

It is an amenable number.

3490945 is a deficient number, since it is larger than the sum of its proper divisors (800615).

3490945 is a wasteful number, since it uses less digits than its factorization.

3490945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17075.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 3490945 is about 1868.4070755593. The cubic root of 3490945 is about 151.6984006910.

The spelling of 3490945 in words is "three million, four hundred ninety thousand, nine hundred forty-five".