5491042 has 4 divisors (see below), whose sum is σ = 8236566. Its totient is φ = 2745520.

The previous prime is 5491039. The next prime is 5491081. The reversal of 5491042 is 2401945.

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

It can be written as a sum of positive squares in only one way, i.e., 4800481 + 690561 = 2191^2 + 831^2 .

It is a super-3 number, since 3×5491042³ (a number of 21 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5490998 and 5491016.

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 as a sum of consecutive naturals, namely, 1372759 + ... + 1372762.

Almost surely, 2^5491042 is an apocalyptic number.

5491042 is a deficient number, since it is larger than the sum of its proper divisors (2745524).

5491042 is a wasteful number, since it uses less digits than its factorization.

5491042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745523.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 5491042 is about 2343.2972496036. The cubic root of 5491042 is about 176.4215317803.

Adding to 5491042 its reverse (2401945), we get a palindrome (7892987).

The spelling of 5491042 in words is "five million, four hundred ninety-one thousand, forty-two".