1572144 has 40 divisors (see below), whose sum is σ = 4642560. Its totient is φ = 449088.

The previous prime is 1572113. The next prime is 1572149. The reversal of 1572144 is 4412751.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1572149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2004 + ... + 2675.

It is an arithmetic number, because the mean of its divisors is an integer number (116064).

2^1572144 is an apocalyptic number.

1572144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1572144 is an abundant number, since it is smaller than the sum of its proper divisors (3070416).

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

1572144 is a wasteful number, since it uses less digits than its factorization.

1572144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4697 (or 4691 counting only the distinct ones).

The product of its digits is 1120, while the sum is 24.

The square root of 1572144 is about 1253.8516658680. The cubic root of 1572144 is about 116.2779699146.

Adding to 1572144 its reverse (4412751), we get a palindrome (5984895).

The spelling of 1572144 in words is "one million, five hundred seventy-two thousand, one hundred forty-four".