1202820530 has 16 divisors (see below), whose sum is σ = 2239735320. Its totient is φ = 464537472.

The previous prime is 1202820527. The next prime is 1202820539. The reversal of 1202820530 is 350282021.

It can be written as a sum of positive squares in 4 ways, for example, as 645718921 + 557101609 = 25411^2 + 23603^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1202820496 and 1202820505.

It is not an unprimeable number, because it can be changed into a prime (1202820539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2073539 + ... + 2074118.

Almost surely, 2^1202820530 is an apocalyptic number.

1202820530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1202820530 is a deficient number, since it is larger than the sum of its proper divisors (1036914790).

1202820530 is a wasteful number, since it uses less digits than its factorization.

1202820530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4147693.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1202820530 is about 34681.7031012031. The cubic root of 1202820530 is about 1063.4904900550.

The spelling of 1202820530 in words is "one billion, two hundred two million, eight hundred twenty thousand, five hundred thirty".