5405618 has 4 divisors (see below), whose sum is σ = 8108430. Its totient is φ = 2702808.

The previous prime is 5405599. The next prime is 5405641. The reversal of 5405618 is 8165045.

It is a happy number.

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., 3265249 + 2140369 = 1807^2 + 1463^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1351403 + ... + 1351406.

Almost surely, 2^5405618 is an apocalyptic number.

5405618 is a deficient number, since it is larger than the sum of its proper divisors (2702812).

5405618 is a wasteful number, since it uses less digits than its factorization.

5405618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2702811.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 5405618 is about 2324.9984946232. The cubic root of 5405618 is about 175.5018844342.

The spelling of 5405618 in words is "five million, four hundred five thousand, six hundred eighteen".