1988449 has 8 divisors (see below), whose sum is σ = 2056032. Its totient is φ = 1921920.

The previous prime is 1988423. The next prime is 1988453. The reversal of 1988449 is 9448891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1988449 - 2¹¹ = 1986401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1988249) 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, 5457 + ... + 5809.

It is an arithmetic number, because the mean of its divisors is an integer number (257004).

2^1988449 is an apocalyptic number.

It is an amenable number.

1988449 is a deficient number, since it is larger than the sum of its proper divisors (67583).

1988449 is a wasteful number, since it uses less digits than its factorization.

1988449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527.

The product of its digits is 82944, while the sum is 43.

The square root of 1988449 is about 1410.1237534344. The cubic root of 1988449 is about 125.7490807243.

The spelling of 1988449 in words is "one million, nine hundred eighty-eight thousand, four hundred forty-nine".