2961378 has 48 divisors (see below), whose sum is σ = 7725120. Its totient is φ = 800928.

The previous prime is 2961377. The next prime is 2961433. The reversal of 2961378 is 8731692.

It is not an unprimeable number, because it can be changed into a prime (2961373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1776 + ... + 3012.

It is an arithmetic number, because the mean of its divisors is an integer number (160940).

2^2961378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2961378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3862560).

2961378 is an abundant number, since it is smaller than the sum of its proper divisors (4763742).

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

2961378 is a wasteful number, since it uses less digits than its factorization.

2961378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271 (or 1268 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 2961378 is about 1720.8654799257. The cubic root of 2961378 is about 143.6033645237.

The spelling of 2961378 in words is "two million, nine hundred sixty-one thousand, three hundred seventy-eight".