1600642 has 8 divisors (see below), whose sum is σ = 2407932. Its totient is φ = 798000.

The previous prime is 1600637. The next prime is 1600649. The reversal of 1600642 is 2460061.

It can be written as a sum of positive squares in 2 ways, for example, as 1083681 + 516961 = 1041^2 + 719^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1600649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109 + ... + 1792.

2^1600642 is an apocalyptic number.

1600642 is a deficient number, since it is larger than the sum of its proper divisors (807290).

1600642 is a wasteful number, since it uses less digits than its factorization.

1600642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1600642 is about 1265.1648113981. The cubic root of 1600642 is about 116.9763509316.

The spelling of 1600642 in words is "one million, six hundred thousand, six hundred forty-two".