3855540900 has 72 divisors (see below), whose sum is σ = 11289839904. Its totient is φ = 1015750400.

The previous prime is 3855540893. The next prime is 3855540919. The reversal of 3855540900 is 90455583.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52521 + ... + 102320.

It is an arithmetic number, because the mean of its divisors is an integer number (156803332).

Almost surely, 2^3855540900 is an apocalyptic number.

3855540900 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3855540900 is an abundant number, since it is smaller than the sum of its proper divisors (7434299004).

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

3855540900 is a wasteful number, since it uses less digits than its factorization.

3855540900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154941 (or 154934 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 3855540900 is about 62093.0020211618. The cubic root of 3855540900 is about 1568.0567326629.

The spelling of 3855540900 in words is "three billion, eight hundred fifty-five million, five hundred forty thousand, nine hundred".