4548139920 has 60 divisors (see below), whose sum is σ = 15274172316. Its totient is φ = 1212837120.

The previous prime is 4548139913. The next prime is 4548139943. The reversal of 4548139920 is 299318454.

4548139920 is a `hidden beast` number, since 4 + 548 + 13 + 9 + 92 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2874675456 + 1673464464 = 53616^2 + 40908^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 3157711 + ... + 3159150.

Almost surely, 2^4548139920 is an apocalyptic number.

4548139920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4548139920 is an abundant number, since it is smaller than the sum of its proper divisors (10726032396).

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

4548139920 is a wasteful number, since it uses less digits than its factorization.

4548139920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6316880 (or 6316871 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 4548139920 is about 67439.8985764362. The cubic root of 4548139920 is about 1656.8299592403.

The spelling of 4548139920 in words is "four billion, five hundred forty-eight million, one hundred thirty-nine thousand, nine hundred twenty".