2129396 has 6 divisors (see below), whose sum is σ = 3726450. Its totient is φ = 1064696.

The previous prime is 2129389. The next prime is 2129399. The reversal of 2129396 is 6939212.

It can be written as a sum of positive squares in only one way, i.e., 2102500 + 26896 = 1450^2 + 164^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266171 + ... + 266178.

It is an arithmetic number, because the mean of its divisors is an integer number (621075).

2^2129396 is an apocalyptic number.

It is an amenable number.

2129396 is a deficient number, since it is larger than the sum of its proper divisors (1597054).

2129396 is a wasteful number, since it uses less digits than its factorization.

2129396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532353 (or 532351 counting only the distinct ones).

The product of its digits is 5832, while the sum is 32.

The square root of 2129396 is about 1459.2450102707. The cubic root of 2129396 is about 128.6526722261.

The spelling of 2129396 in words is "two million, one hundred twenty-nine thousand, three hundred ninety-six".