1888949 has 4 divisors (see below), whose sum is σ = 1894464. Its totient is φ = 1883436.

The previous prime is 1888933. The next prime is 1888963. The reversal of 1888949 is 9498881.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1888949 - 2⁴ = 1888933 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1888919) 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, 2207 + ... + 2940.

It is an arithmetic number, because the mean of its divisors is an integer number (473616).

2^1888949 is an apocalyptic number.

It is an amenable number.

1888949 is a deficient number, since it is larger than the sum of its proper divisors (5515).

1888949 is an equidigital number, since it uses as much as digits as its factorization.

1888949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5514.

The product of its digits is 165888, while the sum is 47.

The square root of 1888949 is about 1374.3904103274. The cubic root of 1888949 is about 123.6156369097.

The spelling of 1888949 in words is "one million, eight hundred eighty-eight thousand, nine hundred forty-nine".