1020356 has 12 divisors (see below), whose sum is σ = 1819692. Its totient is φ = 500448.

The previous prime is 1020353. The next prime is 1020361. The reversal of 1020356 is 6530201.

1020356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 749956 + 270400 = 866^2 + 520^2 .

It is a super-2 number, since 2×1020356² = 2082252733472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1020353) 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, 2195 + ... + 2618.

It is an arithmetic number, because the mean of its divisors is an integer number (151641).

2^1020356 is an apocalyptic number.

It is an amenable number.

1020356 is a deficient number, since it is larger than the sum of its proper divisors (799336).

1020356 is a wasteful number, since it uses less digits than its factorization.

1020356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4870 (or 4868 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1020356 is about 1010.1267247232. The cubic root of 1020356 is about 100.6739806293.

Adding to 1020356 its reverse (6530201), we get a palindrome (7550557).

The spelling of 1020356 in words is "one million, twenty thousand, three hundred fifty-six".