2391874 has 4 divisors (see below), whose sum is σ = 3587814. Its totient is φ = 1195936.

The previous prime is 2391863. The next prime is 2391881. The reversal of 2391874 is 4781932.

2391874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 2380849 + 11025 = 1543^2 + 105^2 .

It is a super-2 number, since 2×2391874² = 11442122463752, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 597967 + ... + 597970.

2^2391874 is an apocalyptic number.

2391874 is a deficient number, since it is larger than the sum of its proper divisors (1195940).

2391874 is a wasteful number, since it uses less digits than its factorization.

2391874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195939.

The product of its digits is 12096, while the sum is 34.

The square root of 2391874 is about 1546.5684595258. The cubic root of 2391874 is about 133.7353132620.

It can be divided in two parts, 2 and 391874, that added together give a square (391876 = 626²).

The spelling of 2391874 in words is "two million, three hundred ninety-one thousand, eight hundred seventy-four".