1601490 has 64 divisors (see below), whose sum is σ = 4396032. Its totient is φ = 369600.

The previous prime is 1601489. The next prime is 1601503. The reversal of 1601490 is 941061.

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7485 + ... + 7695.

It is an arithmetic number, because the mean of its divisors is an integer number (68688).

2^1601490 is an apocalyptic number.

1601490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a pronic number, being equal to 1265×1266.

It is a practical number, because each smaller number is the sum of distinct divisors of 1601490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2198016).

1601490 is an abundant number, since it is smaller than the sum of its proper divisors (2794542).

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

1601490 is a wasteful number, since it uses less digits than its factorization.

1601490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1601490 is about 1265.4999012248. The cubic root of 1601490 is about 116.9970048178.

The spelling of 1601490 in words is "one million, six hundred one thousand, four hundred ninety".