242663563420 has 48 divisors (see below), whose sum is σ = 541327358880. Its totient is φ = 91058079744.

The previous prime is 242663563381. The next prime is 242663563421. The reversal of 242663563420 is 24365366242.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242663563421) 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, 1058025 + ... + 1266784.

It is an arithmetic number, because the mean of its divisors is an integer number (11277653310).

Almost surely, 2^242663563420 is an apocalyptic number.

242663563420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242663563420 is an abundant number, since it is smaller than the sum of its proper divisors (298663795460).

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

242663563420 is a wasteful number, since it uses less digits than its factorization.

242663563420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2325142 (or 2325140 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 43.

The spelling of 242663563420 in words is "two hundred forty-two billion, six hundred sixty-three million, five hundred sixty-three thousand, four hundred twenty".