2152494 has 48 divisors (see below), whose sum is σ = 4996992. Its totient is φ = 694008.

The previous prime is 2152483. The next prime is 2152499. The reversal of 2152494 is 4942512.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152499) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20847 + ... + 20949.

It is an arithmetic number, because the mean of its divisors is an integer number (104104).

2^2152494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2152494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2498496).

2152494 is an abundant number, since it is smaller than the sum of its proper divisors (2844498).

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

2152494 is a wasteful number, since it uses less digits than its factorization.

2152494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 151 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2152494 is about 1467.1380303162. The cubic root of 2152494 is about 129.1161744144.

The spelling of 2152494 in words is "two million, one hundred fifty-two thousand, four hundred ninety-four".