2147236 has 48 divisors (see below), whose sum is σ = 4910976. Its totient is φ = 797184.

The previous prime is 2147231. The next prime is 2147237. The reversal of 2147236 is 6327412.

It is a super-2 number, since 2×2147236² = 9221244879392, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 2147236.

It is not an unprimeable number, because it can be changed into a prime (2147231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6015 + ... + 6361.

It is an arithmetic number, because the mean of its divisors is an integer number (102312).

2^2147236 is an apocalyptic number.

2147236 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2147236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2455488).

2147236 is an abundant number, since it is smaller than the sum of its proper divisors (2763740).

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

2147236 is a wasteful number, since it uses less digits than its factorization.

2147236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 386 counting only the distinct ones).

The product of its digits is 2016, while the sum is 25.

The square root of 2147236 is about 1465.3450105692. The cubic root of 2147236 is about 129.0109559431.

The spelling of 2147236 in words is "two million, one hundred forty-seven thousand, two hundred thirty-six".