1273722 has 16 divisors (see below), whose sum is σ = 2681760. Its totient is φ = 402192.

The previous prime is 1273721. The next prime is 1273729. The reversal of 1273722 is 2273721.

It is a junction number, because it is equal to n+sod(n) for n = 1273692 and 1273701.

It is not an unprimeable number, because it can be changed into a prime (1273721) 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, 5473 + ... + 5700.

It is an arithmetic number, because the mean of its divisors is an integer number (167610).

2^1273722 is an apocalyptic number.

1273722 is an abundant number, since it is smaller than the sum of its proper divisors (1408038).

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

1273722 is a wasteful number, since it uses less digits than its factorization.

1273722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11197.

The product of its digits is 1176, while the sum is 24.

The square root of 1273722 is about 1128.5929292708. The cubic root of 1273722 is about 108.3989020554.

Subtracting 1273722 from its reverse (2273721), we obtain a palindrome (999999).

The spelling of 1273722 in words is "one million, two hundred seventy-three thousand, seven hundred twenty-two".