2140369 has 27 divisors (see below), whose sum is σ = 2888361. Its totient is φ = 1580040.

The previous prime is 2140367. The next prime is 2140387. The reversal of 2140369 is 9630412.

The square root of 2140369 is 1463.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 2140369 - 2¹ = 2140367 is a prime.

It is a super-2 number, since 2×2140369² = 9162358912322, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2140363) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 112642 + ... + 112660.

2^2140369 is an apocalyptic number.

2140369 is the 1463-rd square number.

2140369 is the 732-nd centered octagonal number.

It is an amenable number.

2140369 is a deficient number, since it is larger than the sum of its proper divisors (747992).

2140369 is a wasteful number, since it uses less digits than its factorization.

2140369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The cubic root of 2140369 is about 128.8732806054.

Multiplying 2140369 by its sum of digits (25), we get a square (53509225 = 7315²).

Multiplying 2140369 by its product of nonzero digits (1296), we get a square (2773918224 = 52668²).

The spelling of 2140369 in words is "two million, one hundred forty thousand, three hundred sixty-nine".