3453945 has 32 divisors (see below), whose sum is σ = 6113664. Its totient is φ = 1664960.

The previous prime is 3453943. The next prime is 3453949. The reversal of 3453945 is 5493543.

It is not a de Polignac number, because 3453945 - 2¹ = 3453943 is a prime.

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

It is an Ulam number.

It is a d-powerful number, because it can be written as 3¹³ + 4² + 5 + 3¹³ + 9 + 4⁹ + 5⁵ .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3453943) 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, 19879 + ... + 20051.

It is an arithmetic number, because the mean of its divisors is an integer number (191052).

Almost surely, 2^3453945 is an apocalyptic number.

It is an amenable number.

3453945 is a deficient number, since it is larger than the sum of its proper divisors (2659719).

3453945 is a wasteful number, since it uses less digits than its factorization.

3453945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 192 counting only the distinct ones).

The product of its digits is 32400, while the sum is 33.

The square root of 3453945 is about 1858.4792169944. The cubic root of 3453945 is about 151.1605531736.

The spelling of 3453945 in words is "three million, four hundred fifty-three thousand, nine hundred forty-five".