2152620 has 36 divisors (see below), whose sum is σ = 6530160. Its totient is φ = 573984.

The previous prime is 2152607. The next prime is 2152621. The reversal of 2152620 is 262512.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 2152593 and 2152602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152621) 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, 5800 + ... + 6159.

2^2152620 is an apocalyptic number.

2152620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2152620 is an abundant number, since it is smaller than the sum of its proper divisors (4377540).

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

2152620 is a wasteful number, since it uses less digits than its factorization.

2152620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11974 (or 11969 counting only the distinct ones).

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

The square root of 2152620 is about 1467.1809704328. The cubic root of 2152620 is about 129.1186937122.

It can be divided in two parts, 2152 and 620, that added together give a palindrome (2772).

The spelling of 2152620 in words is "two million, one hundred fifty-two thousand, six hundred twenty".