2355940 has 12 divisors (see below), whose sum is σ = 4947516. Its totient is φ = 942368.

The previous prime is 2355917. The next prime is 2355949. The reversal of 2355940 is 495532.

It can be written as a sum of positive squares in 2 ways, for example, as 1387684 + 968256 = 1178^2 + 984^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2355899 and 2355908.

It is not an unprimeable number, because it can be changed into a prime (2355949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58879 + ... + 58918.

It is an arithmetic number, because the mean of its divisors is an integer number (412293).

2^2355940 is an apocalyptic number.

2355940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2355940 is an abundant number, since it is smaller than the sum of its proper divisors (2591576).

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

2355940 is a wasteful number, since it uses less digits than its factorization.

2355940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117806 (or 117804 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 2355940 is about 1534.9071633164. The cubic root of 2355940 is about 133.0622129657.

The spelling of 2355940 in words is "two million, three hundred fifty-five thousand, nine hundred forty".