2349840 has 40 divisors (see below), whose sum is σ = 7285248. Its totient is φ = 626560.

The previous prime is 2349829. The next prime is 2349869. The reversal of 2349840 is 489432.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2349798 and 2349807.

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, 4656 + ... + 5135.

2^2349840 is an apocalyptic number.

2349840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2349840 is an abundant number, since it is smaller than the sum of its proper divisors (4935408).

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

2349840 is a wasteful number, since it uses less digits than its factorization.

2349840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9807 (or 9801 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 2349840 is about 1532.9187845414. The cubic root of 2349840 is about 132.9472721434.

The spelling of 2349840 in words is "two million, three hundred forty-nine thousand, eight hundred forty".