2353440 has 48 divisors (see below), whose sum is σ = 7414848. Its totient is φ = 627456.

The previous prime is 2353423. The next prime is 2353453. The reversal of 2353440 is 443532.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1972 + ... + 2931.

It is an arithmetic number, because the mean of its divisors is an integer number (154476).

2^2353440 is an apocalyptic number.

2353440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2353440 is an abundant number, since it is smaller than the sum of its proper divisors (5061408).

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

2353440 is a wasteful number, since it uses less digits than its factorization.

2353440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4921 (or 4913 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 2353440 is about 1534.0925656557. The cubic root of 2353440 is about 133.0151300932.

Adding to 2353440 its reverse (443532), we get a palindrome (2796972).

The spelling of 2353440 in words is "two million, three hundred fifty-three thousand, four hundred forty".