2148940 has 24 divisors (see below), whose sum is σ = 4551120. Its totient is φ = 852288.

The previous prime is 2148907. The next prime is 2148947. The reversal of 2148940 is 498412.

It is a junction number, because it is equal to n+sod(n) for n = 2148899 and 2148908.

It is not an unprimeable number, because it can be changed into a prime (2148947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2394 + ... + 3166.

It is an arithmetic number, because the mean of its divisors is an integer number (189630).

2^2148940 is an apocalyptic number.

2148940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2148940 is an abundant number, since it is smaller than the sum of its proper divisors (2402180).

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

2148940 is a wasteful number, since it uses less digits than its factorization.

2148940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921 (or 919 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 2148940 is about 1465.9263282989. The cubic root of 2148940 is about 129.0450736868.

The spelling of 2148940 in words is "two million, one hundred forty-eight thousand, nine hundred forty".