4181885920 has 48 divisors (see below), whose sum is σ = 9967179600. Its totient is φ = 1657944064.

The previous prime is 4181885893. The next prime is 4181885963. The reversal of 4181885920 is 295881814.

It is a happy number.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97570 + ... + 133729.

It is an arithmetic number, because the mean of its divisors is an integer number (207649575).

Almost surely, 2^4181885920 is an apocalyptic number.

4181885920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4181885920 is an abundant number, since it is smaller than the sum of its proper divisors (5785293680).

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

4181885920 is a wasteful number, since it uses less digits than its factorization.

4181885920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231427 (or 231419 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 46.

The square root of 4181885920 is about 64667.5028124637. The cubic root of 4181885920 is about 1611.1057974335.

The spelling of 4181885920 in words is "four billion, one hundred eighty-one million, eight hundred eighty-five thousand, nine hundred twenty".