2378066 has 4 divisors (see below), whose sum is σ = 3567102. Its totient is φ = 1189032.

The previous prime is 2378023. The next prime is 2378069. The reversal of 2378066 is 6608732.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2325625 + 52441 = 1525^2 + 229^2 .

It is a d-powerful number, because it can be written as 2²¹ + 3⁵ + 7 + 8³ + 0 + 6³ + 6⁷ .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2378069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594515 + ... + 594518.

2^2378066 is an apocalyptic number.

2378066 is a deficient number, since it is larger than the sum of its proper divisors (1189036).

2378066 is a wasteful number, since it uses less digits than its factorization.

2378066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189035.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 2378066 is about 1542.0979216639. The cubic root of 2378066 is about 133.4774705163.

The spelling of 2378066 in words is "two million, three hundred seventy-eight thousand, sixty-six".