1953822 has 32 divisors (see below), whose sum is σ = 4328352. Its totient is φ = 584064.

The previous prime is 1953821. The next prime is 1953823. The reversal of 1953822 is 2283591.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1953821) and next prime (1953823).

It is a self number, because there is not a number n which added to its sum of digits gives 1953822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1953821) by changing a digit.

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, 2548 + ... + 3224.

It is an arithmetic number, because the mean of its divisors is an integer number (135261).

2^1953822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1953822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2164176).

1953822 is an abundant number, since it is smaller than the sum of its proper divisors (2374530).

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

1953822 is a wasteful number, since it uses less digits than its factorization.

1953822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732.

The product of its digits is 4320, while the sum is 30.

The square root of 1953822 is about 1397.7918299947. The cubic root of 1953822 is about 125.0148675649.

It can be divided in two parts, 1953 and 822, that added together give a triangular number (2775 = T₇₄).

The spelling of 1953822 in words is "one million, nine hundred fifty-three thousand, eight hundred twenty-two".