242999620 has 48 divisors (see below), whose sum is σ = 530667648. Its totient is φ = 93392640.

The previous prime is 242999599. The next prime is 242999621. The reversal of 242999620 is 26999242.

It is not an unprimeable number, because it can be changed into a prime (242999621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52729 + ... + 57151.

It is an arithmetic number, because the mean of its divisors is an integer number (11055576).

Almost surely, 2^242999620 is an apocalyptic number.

242999620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242999620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265333824).

242999620 is an abundant number, since it is smaller than the sum of its proper divisors (287668028).

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

242999620 is a wasteful number, since it uses less digits than its factorization.

242999620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4540 (or 4538 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 242999620 is about 15588.4450796094. The cubic root of 242999620 is about 624.0248216348.

The spelling of 242999620 in words is "two hundred forty-two million, nine hundred ninety-nine thousand, six hundred twenty".