479693988 has 120 divisors (see below), whose sum is σ = 1366041600. Its totient is φ = 146204352.

The previous prime is 479693987. The next prime is 479693989. The reversal of 479693988 is 889396974.

It is an interprime number because it is at equal distance from previous prime (479693987) and next prime (479693989).

It is not an unprimeable number, because it can be changed into a prime (479693987) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 177181 + ... + 179867.

It is an arithmetic number, because the mean of its divisors is an integer number (11383680).

Almost surely, 2^479693988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 479693988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (683020800).

479693988 is an abundant number, since it is smaller than the sum of its proper divisors (886347612).

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

479693988 is a wasteful number, since it uses less digits than its factorization.

479693988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751 (or 2740 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 63.

The square root of 479693988 is about 21901.9174503056. The cubic root of 479693988 is about 782.8071044628.

The spelling of 479693988 in words is "four hundred seventy-nine million, six hundred ninety-three thousand, nine hundred eighty-eight".