1557248 has 72 divisors (see below), whose sum is σ = 3924480. Its totient is φ = 599040.

The previous prime is 1557247. The next prime is 1557287. The reversal of 1557248 is 8427551.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1557247) 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, 19673 + ... + 19751.

2^1557248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1557248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1962240).

1557248 is an abundant number, since it is smaller than the sum of its proper divisors (2367232).

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

1557248 is an equidigital number, since it uses as much as digits as its factorization.

1557248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 99 counting only the distinct ones).

The product of its digits is 11200, while the sum is 32.

The square root of 1557248 is about 1247.8974316826. The cubic root of 1557248 is about 115.9095608989.

The spelling of 1557248 in words is "one million, five hundred fifty-seven thousand, two hundred forty-eight".