2115432 has 48 divisors (see below), whose sum is σ = 6252480. Its totient is φ = 640800.

The previous prime is 2115431. The next prime is 2115433. The reversal of 2115432 is 2345112.

Added to its reverse (2345112) it gives a square (4460544 = 2112²).

It is an interprime number because it is at equal distance from previous prime (2115431) and next prime (2115433).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2115431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 544 + ... + 2127.

It is an arithmetic number, because the mean of its divisors is an integer number (130260).

2^2115432 is an apocalyptic number.

2115432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2115432 is an abundant number, since it is smaller than the sum of its proper divisors (4137048).

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

2115432 is a wasteful number, since it uses less digits than its factorization.

2115432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694 (or 2687 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 2115432 is about 1454.4524743009. The cubic root of 2115432 is about 128.3708321670.

Adding to 2115432 its reverse (2345112), we get a square (4460544 = 2112²).

The spelling of 2115432 in words is "two million, one hundred fifteen thousand, four hundred thirty-two".