2618940 has 24 divisors (see below), whose sum is σ = 7333200. Its totient is φ = 698368.

The previous prime is 2618933. The next prime is 2618953. The reversal of 2618940 is 498162.

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 = 2618898 and 2618907.

It is a congruent number.

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, 21765 + ... + 21884.

It is an arithmetic number, because the mean of its divisors is an integer number (305550).

2^2618940 is an apocalyptic number.

2618940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2618940 is an abundant number, since it is smaller than the sum of its proper divisors (4714260).

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

2618940 is a wasteful number, since it uses less digits than its factorization.

2618940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43661 (or 43659 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 2618940 is about 1618.3139374052. The cubic root of 2618940 is about 137.8399741348.

The spelling of 2618940 in words is "two million, six hundred eighteen thousand, nine hundred forty".