1601648 has 10 divisors (see below), whose sum is σ = 3103224. Its totient is φ = 800816.

The previous prime is 1601647. The next prime is 1601653. The reversal of 1601648 is 8461061.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50036 + ... + 50067.

2^1601648 is an apocalyptic number.

It is an amenable number.

1601648 is a deficient number, since it is larger than the sum of its proper divisors (1501576).

1601648 is a wasteful number, since it uses less digits than its factorization.

1601648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100111 (or 100105 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1601648 is about 1265.5623256087. The cubic root of 1601648 is about 117.0008522596. Note that the first 3 decimals are identical.

The spelling of 1601648 in words is "one million, six hundred one thousand, six hundred forty-eight".