1243488 has 24 divisors (see below), whose sum is σ = 3264408. Its totient is φ = 414464.

The previous prime is 1243483. The next prime is 1243511. The reversal of 1243488 is 8843421.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1243488² = 3092524812288, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243481) 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, 6381 + ... + 6572.

It is an arithmetic number, because the mean of its divisors is an integer number (136017).

2^1243488 is an apocalyptic number.

It is an amenable number.

1243488 is an abundant number, since it is smaller than the sum of its proper divisors (2020920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1243488 is a wasteful number, since it uses less digits than its factorization.

1243488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12966 (or 12958 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 1243488 is about 1115.1179309831. The cubic root of 1243488 is about 107.5343463354.

The spelling of 1243488 in words is "one million, two hundred forty-three thousand, four hundred eighty-eight".