1601572 has 24 divisors (see below), whose sum is σ = 3273984. Its totient is φ = 671232.

The previous prime is 1601569. The next prime is 1601573. The reversal of 1601572 is 2751061.

It is not an unprimeable number, because it can be changed into a prime (1601573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 708 + ... + 1924.

It is an arithmetic number, because the mean of its divisors is an integer number (136416).

2^1601572 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 1601572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1636992).

1601572 is an abundant number, since it is smaller than the sum of its proper divisors (1672412).

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

1601572 is a wasteful number, since it uses less digits than its factorization.

1601572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275 (or 1273 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 1601572 is about 1265.5322990742. The cubic root of 1601572 is about 116.9990016230. Note that the first 3 decimals are identical.

The spelling of 1601572 in words is "one million, six hundred one thousand, five hundred seventy-two".