1601072 has 30 divisors (see below), whose sum is σ = 3413844. Its totient is φ = 726880.

The previous prime is 1601071. The next prime is 1601107. The reversal of 1601072 is 2701061.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1601072.

It is not an unprimeable number, because it can be changed into a prime (1601071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1523 + ... + 2349.

2^1601072 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 1601072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1706922).

1601072 is an abundant number, since it is smaller than the sum of its proper divisors (1812772).

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

1601072 is a wasteful number, since it uses less digits than its factorization.

1601072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 840 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 1601072 is about 1265.3347383203. The cubic root of 1601072 is about 116.9868249221.

The spelling of 1601072 in words is "one million, six hundred one thousand, seventy-two".