4091426 has 4 divisors (see below), whose sum is σ = 6137142. Its totient is φ = 2045712.

The previous prime is 4091393. The next prime is 4091459. The reversal of 4091426 is 6241904.

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

It is an interprime number because it is at equal distance from previous prime (4091393) and next prime (4091459).

It can be written as a sum of positive squares in only one way, i.e., 3367225 + 724201 = 1835^2 + 851^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4091395 and 4091404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022855 + ... + 1022858.

Almost surely, 2^4091426 is an apocalyptic number.

4091426 is a deficient number, since it is larger than the sum of its proper divisors (2045716).

4091426 is a wasteful number, since it uses less digits than its factorization.

4091426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045715.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 4091426 is about 2022.7273667007. The cubic root of 4091426 is about 159.9404205254.

The spelling of 4091426 in words is "four million, ninety-one thousand, four hundred twenty-six".