4689939408 has 160 divisors (see below), whose sum is σ = 15592906752. Its totient is φ = 1178841600.

The previous prime is 4689939391. The next prime is 4689939409. The reversal of 4689939408 is 8049399864.

It is a super-2 number, since 2×4689939408² = 43991063301422780928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4689939409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94110 + ... + 135042.

Almost surely, 2^4689939408 is an apocalyptic number.

4689939408 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4689939408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7796453376).

4689939408 is an abundant number, since it is smaller than the sum of its proper divisors (10902967344).

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

4689939408 is a wasteful number, since it uses less digits than its factorization.

4689939408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40993 (or 40987 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 60.

The square root of 4689939408 is about 68483.1322881774. The cubic root of 4689939408 is about 1673.8726395427.

The spelling of 4689939408 in words is "four billion, six hundred eighty-nine million, nine hundred thirty-nine thousand, four hundred eight".