2381264 has 10 divisors (see below), whose sum is σ = 4613730. Its totient is φ = 1190624.

The previous prime is 2381263. The next prime is 2381273. The reversal of 2381264 is 4621832.

It can be written as a sum of positive squares in only one way, i.e., 1420864 + 960400 = 1192^2 + 980^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2381263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74399 + ... + 74430.

It is an arithmetic number, because the mean of its divisors is an integer number (461373).

2^2381264 is an apocalyptic number.

It is an amenable number.

2381264 is a deficient number, since it is larger than the sum of its proper divisors (2232466).

2381264 is a wasteful number, since it uses less digits than its factorization.

2381264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148837 (or 148831 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 2381264 is about 1543.1344724294. The cubic root of 2381264 is about 133.5372767829.

The spelling of 2381264 in words is "two million, three hundred eighty-one thousand, two hundred sixty-four".