5420818 has 8 divisors (see below), whose sum is σ = 8756748. Its totient is φ = 2501904.

The previous prime is 5420803. The next prime is 5420819. The reversal of 5420818 is 8180245.

It can be written as a sum of positive squares in 2 ways, for example, as 3988009 + 1432809 = 1997^2 + 1197^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (5420819) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 104221 + ... + 104272.

Almost surely, 2^5420818 is an apocalyptic number.

5420818 is a deficient number, since it is larger than the sum of its proper divisors (3335930).

5420818 is a wasteful number, since it uses less digits than its factorization.

5420818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208508.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 5420818 is about 2328.2650192794. The cubic root of 5420818 is about 175.6662277885. Note that the first 3 decimals are identical.

The spelling of 5420818 in words is "five million, four hundred twenty thousand, eight hundred eighteen".