3378145 has 4 divisors (see below), whose sum is σ = 4053780. Its totient is φ = 2702512.

The previous prime is 3378131. The next prime is 3378149. The reversal of 3378145 is 5418733.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5418733 = 17 ⋅318749.

It can be written as a sum of positive squares in 2 ways, for example, as 1830609 + 1547536 = 1353^2 + 1244^2 .

It is a cyclic number.

It is not a de Polignac number, because 3378145 - 2¹¹ = 3376097 is a prime.

It is a super-2 number, since 2×3378145² = 22823727282050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3378149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337810 + ... + 337819.

It is an arithmetic number, because the mean of its divisors is an integer number (1013445).

Almost surely, 2^3378145 is an apocalyptic number.

It is an amenable number.

3378145 is a deficient number, since it is larger than the sum of its proper divisors (675635).

3378145 is an equidigital number, since it uses as much as digits as its factorization.

3378145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675634.

The product of its digits is 10080, while the sum is 31.

The square root of 3378145 is about 1837.9730683555. The cubic root of 3378145 is about 150.0465781276.

The spelling of 3378145 in words is "three million, three hundred seventy-eight thousand, one hundred forty-five".