4573181920 has 24 divisors (see below), whose sum is σ = 10804142664. Its totient is φ = 1829272704.

The previous prime is 4573181909. The next prime is 4573181927. The reversal of 4573181920 is 291813754.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4573181927) 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, 14291034 + ... + 14291353.

It is an arithmetic number, because the mean of its divisors is an integer number (450172611).

Almost surely, 2^4573181920 is an apocalyptic number.

4573181920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4573181920 is an abundant number, since it is smaller than the sum of its proper divisors (6230960744).

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

4573181920 is a wasteful number, since it uses less digits than its factorization.

4573181920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28582402 (or 28582394 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 4573181920 is about 67625.3053227858. The cubic root of 4573181920 is about 1659.8652234894.

The spelling of 4573181920 in words is "four billion, five hundred seventy-three million, one hundred eighty-one thousand, nine hundred twenty".