4988621438 has 8 divisors (see below), whose sum is σ = 7484714280. Its totient is φ = 2493716680.

The previous prime is 4988621431. The next prime is 4988621483. The reversal of 4988621438 is 8341268894.

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

It is a self number, because there is not a number n which added to its sum of digits gives 4988621438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4988621431) 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, 286448 + ... + 303363.

It is an arithmetic number, because the mean of its divisors is an integer number (935589285).

Almost surely, 2^4988621438 is an apocalyptic number.

4988621438 is a deficient number, since it is larger than the sum of its proper divisors (2496092842).

4988621438 is a wasteful number, since it uses less digits than its factorization.

4988621438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594042.

The product of its digits is 2654208, while the sum is 53.

The square root of 4988621438 is about 70630.1737078425. The cubic root of 4988621438 is about 1708.6778236381.

The spelling of 4988621438 in words is "four billion, nine hundred eighty-eight million, six hundred twenty-one thousand, four hundred thirty-eight".