242100380 has 12 divisors (see below), whose sum is σ = 508410840. Its totient is φ = 96840144.

The previous prime is 242100379. The next prime is 242100407. The reversal of 242100380 is 83001242.

242100380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×242100380³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 12105019 = 242100380 / (2 + 4 + 2 + 1 + 0 + 0 + 3 + 8 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6052490 + ... + 6052529.

It is an arithmetic number, because the mean of its divisors is an integer number (42367570).

Almost surely, 2^242100380 is an apocalyptic number.

242100380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242100380 is an abundant number, since it is smaller than the sum of its proper divisors (266310460).

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

242100380 is a wasteful number, since it uses less digits than its factorization.

242100380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12105028 (or 12105026 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 242100380 is about 15559.5751870030. The cubic root of 242100380 is about 623.2541185110.

The spelling of 242100380 in words is "two hundred forty-two million, one hundred thousand, three hundred eighty".