383254981890 has 64 divisors (see below), whose sum is σ = 1003914749952. Its totient is φ = 92865528000.

The previous prime is 383254981871. The next prime is 383254981891. The reversal of 383254981890 is 98189452383.

383254981890 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×383254981890² (a number of 24 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (383254981891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 408615 + ... + 966165.

It is an arithmetic number, because the mean of its divisors is an integer number (15686167968).

Almost surely, 2^383254981890 is an apocalyptic number.

383254981890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

383254981890 is an abundant number, since it is smaller than the sum of its proper divisors (620659768062).

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

383254981890 is a wasteful number, since it uses less digits than its factorization.

383254981890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559655.

The product of its (nonzero) digits is 14929920, while the sum is 60.

The spelling of 383254981890 in words is "three hundred eighty-three billion, two hundred fifty-four million, nine hundred eighty-one thousand, eight hundred ninety".