4949839728 has 60 divisors (see below), whose sum is σ = 13902087888. Its totient is φ = 1644061440.

The previous prime is 4949839717. The next prime is 4949839771. The reversal of 4949839728 is 8279389494.

4949839728 is a `hidden beast` number, since 49 + 498 + 39 + 72 + 8 = 666.

It is a super-2 number, since 2×4949839728² = 49001826665774227968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20700 + ... + 101627.

Almost surely, 2^4949839728 is an apocalyptic number.

4949839728 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4949839728 is an abundant number, since it is smaller than the sum of its proper divisors (8952248160).

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

4949839728 is a wasteful number, since it uses less digits than its factorization.

4949839728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122622 (or 122613 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

The square root of 4949839728 is about 70355.0973846245. The cubic root of 4949839728 is about 1704.2385270801.

The spelling of 4949839728 in words is "four billion, nine hundred forty-nine million, eight hundred thirty-nine thousand, seven hundred twenty-eight".