3442645 has 8 divisors (see below), whose sum is σ = 4159800. Its totient is φ = 2735040.

The previous prime is 3442639. The next prime is 3442651. The reversal of 3442645 is 5462443.

It is an interprime number because it is at equal distance from previous prime (3442639) and next prime (3442651).

It can be written as a sum of positive squares in 4 ways, for example, as 5329 + 3437316 = 73^2 + 1854^2 .

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

It is not a de Polignac number, because 3442645 - 2⁹ = 3442133 is a prime.

3442645 is a lucky number.

It is a congruent number.

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, 1566 + ... + 3055.

It is an arithmetic number, because the mean of its divisors is an integer number (519975).

Almost surely, 2^3442645 is an apocalyptic number.

It is an amenable number.

3442645 is a deficient number, since it is larger than the sum of its proper divisors (717155).

3442645 is a wasteful number, since it uses less digits than its factorization.

3442645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4775.

The product of its digits is 11520, while the sum is 28.

The square root of 3442645 is about 1855.4366063005. The cubic root of 3442645 is about 150.9955263795.

The spelling of 3442645 in words is "three million, four hundred forty-two thousand, six hundred forty-five".