2232540 has 72 divisors (see below), whose sum is σ = 6901440. Its totient is φ = 584064.

The previous prime is 2232523. The next prime is 2232551. The reversal of 2232540 is 452322.

It is a super-3 number, since 3×2232540³ = 33382511026773192000, which contains 333 as substring.

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

It is a d-powerful number, because it can be written as 2¹⁴ + 2¹⁶ + 3¹³ + 2¹⁹ + 5⁶ + 4⁷ + 0 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14142 + ... + 14298.

2^2232540 is an apocalyptic number.

2232540 is a gapful number since it is divisible by the number (20) 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 2232540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3450720).

2232540 is an abundant number, since it is smaller than the sum of its proper divisors (4668900).

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

2232540 is a wasteful number, since it uses less digits than its factorization.

2232540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 2232540 is about 1494.1686651781. The cubic root of 2232540 is about 130.6972399421.

Adding to 2232540 its reverse (452322), we get a palindrome (2684862).

It can be divided in two parts, 2232 and 540, that added together give a palindrome (2772).

The spelling of 2232540 in words is "two million, two hundred thirty-two thousand, five hundred forty".