1202720 has 24 divisors (see below), whose sum is σ = 2841804. Its totient is φ = 481024.

The previous prime is 1202689. The next prime is 1202741. The reversal of 1202720 is 272021.

It can be written as a sum of positive squares in 2 ways, for example, as 1157776 + 44944 = 1076^2 + 212^2 .

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 1202695 and 1202704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3599 + ... + 3918.

2^1202720 is an apocalyptic number.

1202720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202720 is an abundant number, since it is smaller than the sum of its proper divisors (1639084).

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

1202720 is an equidigital number, since it uses as much as digits as its factorization.

1202720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7532 (or 7524 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 1202720 is about 1096.6859167510. The cubic root of 1202720 is about 106.3460860897.

Adding to 1202720 its reverse (272021), we get a palindrome (1474741).

The spelling of 1202720 in words is "one million, two hundred two thousand, seven hundred twenty".