1249988 has 12 divisors (see below), whose sum is σ = 2204412. Its totient is φ = 620160.

The previous prime is 1249943. The next prime is 1249999. The reversal of 1249988 is 8899421.

It can be written as a sum of positive squares in 2 ways, for example, as 743044 + 506944 = 862^2 + 712^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593 + ... + 1688.

It is an arithmetic number, because the mean of its divisors is an integer number (183701).

2^1249988 is an apocalyptic number.

It is an amenable number.

1249988 is a deficient number, since it is larger than the sum of its proper divisors (954424).

1249988 is a wasteful number, since it uses less digits than its factorization.

1249988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422 (or 2420 counting only the distinct ones).

The product of its digits is 41472, while the sum is 41.

The square root of 1249988 is about 1118.0286221739. The cubic root of 1249988 is about 107.7213897909.

The spelling of 1249988 in words is "one million, two hundred forty-nine thousand, nine hundred eighty-eight".