2235540 has 96 divisors (see below), whose sum is σ = 6894720. Its totient is φ = 539136.

The previous prime is 2235539. The next prime is 2235547. The reversal of 2235540 is 455322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2235547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42154 + ... + 42206.

It is an arithmetic number, because the mean of its divisors is an integer number (71820).

2^2235540 is an apocalyptic number.

2235540 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 2235540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3447360).

2235540 is an abundant number, since it is smaller than the sum of its proper divisors (4659180).

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

2235540 is a wasteful number, since it uses less digits than its factorization.

2235540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 2235540 is about 1495.1722308818. The cubic root of 2235540 is about 130.7557556872.

It can be divided in two parts, 2235 and 540, that added together give a triangular number (2775 = T₇₄).

The spelling of 2235540 in words is "two million, two hundred thirty-five thousand, five hundred forty".