1958022 has 72 divisors (see below), whose sum is σ = 4979520. Its totient is φ = 554400.

The previous prime is 1957999. The next prime is 1958029. The reversal of 1958022 is 2208591.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1958029) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 63147 + ... + 63177.

It is an arithmetic number, because the mean of its divisors is an integer number (69160).

2^1958022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1958022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2489760).

1958022 is an abundant number, since it is smaller than the sum of its proper divisors (3021498).

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

1958022 is a wasteful number, since it uses less digits than its factorization.

1958022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1958022 is about 1399.2933931095. The cubic root of 1958022 is about 125.1043821440.

The spelling of 1958022 in words is "one million, nine hundred fifty-eight thousand, twenty-two".