1924989 has 12 divisors (see below), whose sum is σ = 2821728. Its totient is φ = 1166440.

The previous prime is 1924973. The next prime is 1925017. The reversal of 1924989 is 9894291.

It is not a de Polignac number, because 1924989 - 2⁴ = 1924973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1924989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1924969) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2289 + ... + 3014.

It is an arithmetic number, because the mean of its divisors is an integer number (235144).

2^1924989 is an apocalyptic number.

It is an amenable number.

1924989 is a deficient number, since it is larger than the sum of its proper divisors (896739).

1924989 is a wasteful number, since it uses less digits than its factorization.

1924989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5328 (or 5317 counting only the distinct ones).

The product of its digits is 46656, while the sum is 42.

The square root of 1924989 is about 1387.4397284207. The cubic root of 1924989 is about 124.3968597892.

The spelling of 1924989 in words is "one million, nine hundred twenty-four thousand, nine hundred eighty-nine".