1303722 has 32 divisors (see below), whose sum is σ = 3312000. Its totient is φ = 372384.

The previous prime is 1303711. The next prime is 1303739. The reversal of 1303722 is 2273031.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1303695 and 1303704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1347 + ... + 2102.

It is an arithmetic number, because the mean of its divisors is an integer number (103500).

2^1303722 is an apocalyptic number.

1303722 is an abundant number, since it is smaller than the sum of its proper divisors (2008278).

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

1303722 is a wasteful number, since it uses less digits than its factorization.

1303722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3467 (or 3461 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 1303722 is about 1141.8064634604. The cubic root of 1303722 is about 109.2433471190.

Adding to 1303722 its reverse (2273031), we get a palindrome (3576753).

It can be divided in two parts, 1303 and 722, that added together give a square (2025 = 45²).

The spelling of 1303722 in words is "one million, three hundred three thousand, seven hundred twenty-two".