5018438 has 4 divisors (see below), whose sum is σ = 7527660. Its totient is φ = 2509218.

The previous prime is 5018437. The next prime is 5018467. The reversal of 5018438 is 8348105.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5018438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5018437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1254608 + ... + 1254611.

It is an arithmetic number, because the mean of its divisors is an integer number (1881915).

Almost surely, 2^5018438 is an apocalyptic number.

5018438 is a deficient number, since it is larger than the sum of its proper divisors (2509222).

5018438 is a wasteful number, since it uses less digits than its factorization.

5018438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2509221.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 5018438 is about 2240.1870457620. The cubic root of 5018438 is about 171.2075270732.

The spelling of 5018438 in words is "five million, eighteen thousand, four hundred thirty-eight".