1996530 has 32 divisors (see below), whose sum is σ = 4874688. Its totient is φ = 523200.

The previous prime is 1996529. The next prime is 1996543. The reversal of 1996530 is 356991.

It is a super-2 number, since 2×1996530² = 7972264081800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1996491 and 1996500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1285 + ... + 2375.

It is an arithmetic number, because the mean of its divisors is an integer number (152334).

2^1996530 is an apocalyptic number.

1996530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1996530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2437344).

1996530 is an abundant number, since it is smaller than the sum of its proper divisors (2878158).

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

1996530 is a wasteful number, since it uses less digits than its factorization.

1996530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162.

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 1996530 is about 1412.9861995080. The cubic root of 1996530 is about 125.9191973743.

The spelling of 1996530 in words is "one million, nine hundred ninety-six thousand, five hundred thirty".