2115396 has 30 divisors (see below), whose sum is σ = 5530910. Its totient is φ = 705024.

The previous prime is 2115371. The next prime is 2115397. The reversal of 2115396 is 6935112.

It can be written as a sum of positive squares in only one way, i.e., 1368900 + 746496 = 1170^2 + 864^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2941 + ... + 3588.

2^2115396 is an apocalyptic number.

It is an amenable number.

2115396 is an abundant number, since it is smaller than the sum of its proper divisors (3415514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2115396 is a wasteful number, since it uses less digits than its factorization.

2115396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6545 (or 6534 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 2115396 is about 1454.4400984571. The cubic root of 2115396 is about 128.3701039664.

The spelling of 2115396 in words is "two million, one hundred fifteen thousand, three hundred ninety-six".