1829722 has 4 divisors (see below), whose sum is σ = 2744586. Its totient is φ = 914860.

The previous prime is 1829717. The next prime is 1829743. The reversal of 1829722 is 2279281.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1745041 + 84681 = 1321^2 + 291^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 457429 + ... + 457432.

2^1829722 is an apocalyptic number.

1829722 is a deficient number, since it is larger than the sum of its proper divisors (914864).

1829722 is an equidigital number, since it uses as much as digits as its factorization.

1829722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914863.

The product of its digits is 4032, while the sum is 31.

The square root of 1829722 is about 1352.6721701876. The cubic root of 1829722 is about 122.3099259703.

The spelling of 1829722 in words is "one million, eight hundred twenty-nine thousand, seven hundred twenty-two".