1375722 has 24 divisors (see below), whose sum is σ = 3111264. Its totient is φ = 438504.

The previous prime is 1375709. The next prime is 1375723. The reversal of 1375722 is 2275731.

It is a super-2 number, since 2×1375722² = 3785222042568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1375723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1248 + ... + 2075.

It is an arithmetic number, because the mean of its divisors is an integer number (129636).

2^1375722 is an apocalyptic number.

1375722 is an abundant number, since it is smaller than the sum of its proper divisors (1735542).

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

1375722 is a wasteful number, since it uses less digits than its factorization.

1375722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3354 (or 3351 counting only the distinct ones).

The product of its digits is 2940, while the sum is 27.

The square root of 1375722 is about 1172.9117613870. The cubic root of 1375722 is about 111.2184643183.

Subtracting 1375722 from its reverse (2275731), we obtain a palindrome (900009).

The spelling of 1375722 in words is "one million, three hundred seventy-five thousand, seven hundred twenty-two".