242381916 has 48 divisors (see below), whose sum is σ = 718170880. Its totient is φ = 69251760.

The previous prime is 242381911. The next prime is 242381939. The reversal of 242381916 is 619183242.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242381911) 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, 159550 + ... + 161061.

Almost surely, 2^242381916 is an apocalyptic number.

It is an amenable number.

242381916 is an abundant number, since it is smaller than the sum of its proper divisors (475788964).

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

242381916 is a wasteful number, since it uses less digits than its factorization.

242381916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320631 (or 320623 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 242381916 is about 15568.6195919870. The cubic root of 242381916 is about 623.4956168220.

The spelling of 242381916 in words is "two hundred forty-two million, three hundred eighty-one thousand, nine hundred sixteen".