1572648 has 128 divisors (see below), whose sum is σ = 5253120. Its totient is φ = 380160.

The previous prime is 1572647. The next prime is 1572677. The reversal of 1572648 is 8462751.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1572643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42486 + ... + 42522.

It is an arithmetic number, because the mean of its divisors is an integer number (41040).

2^1572648 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 1572648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2626560).

1572648 is an abundant number, since it is smaller than the sum of its proper divisors (3680472).

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

1572648 is a wasteful number, since it uses less digits than its factorization.

1572648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 83 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 1572648 is about 1254.0526304745. The cubic root of 1572648 is about 116.2903941021.

The spelling of 1572648 in words is "one million, five hundred seventy-two thousand, six hundred forty-eight".