4091922 has 24 divisors (see below), whose sum is σ = 8908380. Its totient is φ = 1357440.

The previous prime is 4091921. The next prime is 4091933. The reversal of 4091922 is 2291904.

It can be written as a sum of positive squares in 2 ways, for example, as 3721041 + 370881 = 1929^2 + 609^2 .

It is not an unprimeable number, because it can be changed into a prime (4091921) 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, 4654 + ... + 5462.

Almost surely, 2^4091922 is an apocalyptic number.

4091922 is an abundant number, since it is smaller than the sum of its proper divisors (4816458).

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

4091922 is a wasteful number, since it uses less digits than its factorization.

4091922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098 (or 1095 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 4091922 is about 2022.8499697209. The cubic root of 4091922 is about 159.9468834100.

The spelling of 4091922 in words is "four million, ninety-one thousand, nine hundred twenty-two".