4998138 has 8 divisors (see below), whose sum is σ = 9996288. Its totient is φ = 1666044.

The previous prime is 4998137. The next prime is 4998181. The reversal of 4998138 is 8318994.

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

4998138 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 4998138.

It is not an unprimeable number, because it can be changed into a prime (4998131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416506 + ... + 416517.

It is an arithmetic number, because the mean of its divisors is an integer number (1249536).

Almost surely, 2^4998138 is an apocalyptic number.

4998138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4998138 is a wasteful number, since it uses less digits than its factorization.

4998138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833028.

The product of its digits is 62208, while the sum is 42.

The square root of 4998138 is about 2235.6515828724. The cubic root of 4998138 is about 170.9763655308.

The spelling of 4998138 in words is "four million, nine hundred ninety-eight thousand, one hundred thirty-eight".