1958226 has 16 divisors (see below), whose sum is σ = 3931200. Its totient is φ = 650288.

The previous prime is 1958189. The next prime is 1958233. The reversal of 1958226 is 6228591.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1915 + ... + 2753.

It is an arithmetic number, because the mean of its divisors is an integer number (245700).

2^1958226 is an apocalyptic number.

1958226 is an abundant number, since it is smaller than the sum of its proper divisors (1972974).

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

1958226 is a wasteful number, since it uses less digits than its factorization.

1958226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233.

The product of its digits is 8640, while the sum is 33.

The square root of 1958226 is about 1399.3662851448. The cubic root of 1958226 is about 125.1087267339.

The spelling of 1958226 in words is "one million, nine hundred fifty-eight thousand, two hundred twenty-six".