2152764 has 48 divisors (see below), whose sum is σ = 5770240. Its totient is φ = 693360.

The previous prime is 2152753. The next prime is 2152783. The reversal of 2152764 is 4672512.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3027 + ... + 3669.

2^2152764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2152764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2885120).

2152764 is an abundant number, since it is smaller than the sum of its proper divisors (3617476).

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

2152764 is a wasteful number, since it uses less digits than its factorization.

2152764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687 (or 679 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 2152764 is about 1467.2300433129. The cubic root of 2152764 is about 129.1215727894.

It can be divided in two parts, 2152 and 764, that added together give a square (2916 = 54²).

The spelling of 2152764 in words is "two million, one hundred fifty-two thousand, seven hundred sixty-four".