2235440 has 20 divisors (see below), whose sum is σ = 5197584. Its totient is φ = 894144.

The previous prime is 2235437. The next prime is 2235469. The reversal of 2235440 is 445322.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13892 + ... + 14051.

2^2235440 is an apocalyptic number.

2235440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2235440 is an abundant number, since it is smaller than the sum of its proper divisors (2962144).

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

2235440 is a wasteful number, since it uses less digits than its factorization.

2235440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27956 (or 27950 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 2235440 is about 1495.1387895443. The cubic root of 2235440 is about 130.7538060061.

The spelling of 2235440 in words is "two million, two hundred thirty-five thousand, four hundred forty".