2148890 has 16 divisors (see below), whose sum is σ = 4036608. Its totient is φ = 822096.

The previous prime is 2148877. The next prime is 2148893. The reversal of 2148890 is 988412.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2148893) 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, 4442 + ... + 4901.

It is an arithmetic number, because the mean of its divisors is an integer number (252288).

2^2148890 is an apocalyptic number.

2148890 is a deficient number, since it is larger than the sum of its proper divisors (1887718).

2148890 is a wasteful number, since it uses less digits than its factorization.

2148890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9373.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 2148890 is about 1465.9092741367. The cubic root of 2148890 is about 129.0440728362.

The spelling of 2148890 in words is "two million, one hundred forty-eight thousand, eight hundred ninety".