1600090 has 8 divisors (see below), whose sum is σ = 2880180. Its totient is φ = 640032.

The previous prime is 1600069. The next prime is 1600097. The reversal of 1600090 is 900061.

It can be written as a sum of positive squares in 2 ways, for example, as 1447209 + 152881 = 1203^2 + 391^2 .

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 (1600097) 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, 79995 + ... + 80014.

2^1600090 is an apocalyptic number.

1600090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1600090 is a deficient number, since it is larger than the sum of its proper divisors (1280090).

1600090 is a wasteful number, since it uses less digits than its factorization.

1600090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160016.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1600090 is about 1264.9466391908. The cubic root of 1600090 is about 116.9629025007.

It can be divided in two parts, 16000 and 90, that multiplied together give a square (1440000 = 1200²).

The spelling of 1600090 in words is "one million, six hundred thousand, ninety".