3438378 has 12 divisors (see below), whose sum is σ = 7449858. Its totient is φ = 1146120.

The previous prime is 3438377. The next prime is 3438389. The reversal of 3438378 is 8738343.

It can be written as a sum of positive squares in only one way, i.e., 3143529 + 294849 = 1773^2 + 543^2 .

It is not an unprimeable number, because it can be changed into a prime (3438377) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 95493 + ... + 95528.

Almost surely, 2^3438378 is an apocalyptic number.

3438378 is an abundant number, since it is smaller than the sum of its proper divisors (4011480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3438378 is a wasteful number, since it uses less digits than its factorization.

3438378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191029 (or 191026 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 3438378 is about 1854.2863856481. The cubic root of 3438378 is about 150.9331165863.

The spelling of 3438378 in words is "three million, four hundred thirty-eight thousand, three hundred seventy-eight".