5421618 has 24 divisors (see below), whose sum is σ = 11793600. Its totient is φ = 1800024.

The previous prime is 5421607. The next prime is 5421641. The reversal of 5421618 is 8161245.

5421618 is a `hidden beast` number, since 5 + 42 + 1 + 618 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5421591 and 5421600.

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 11 ways as a sum of consecutive naturals, for example, 6043 + ... + 6881.

It is an arithmetic number, because the mean of its divisors is an integer number (491400).

Almost surely, 2^5421618 is an apocalyptic number.

5421618 is an abundant number, since it is smaller than the sum of its proper divisors (6371982).

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

5421618 is a wasteful number, since it uses less digits than its factorization.

5421618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206 (or 1203 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 5421618 is about 2328.4368146892. The cubic root of 5421618 is about 175.6748689241.

The spelling of 5421618 in words is "five million, four hundred twenty-one thousand, six hundred eighteen".