242154224 has 20 divisors (see below), whose sum is σ = 505264536. Its totient is φ = 111763392.

The previous prime is 242154181. The next prime is 242154229. The reversal of 242154224 is 422451242.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 242154193 and 242154202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242154229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581894 + ... + 582309.

Almost surely, 2^242154224 is an apocalyptic number.

It is an amenable number.

242154224 is an abundant number, since it is smaller than the sum of its proper divisors (263110312).

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

242154224 is a wasteful number, since it uses less digits than its factorization.

242154224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164224 (or 1164218 counting only the distinct ones).

The product of its digits is 5120, while the sum is 26.

The square root of 242154224 is about 15561.3053437043. The cubic root of 242154224 is about 623.3003197426.

The spelling of 242154224 in words is "two hundred forty-two million, one hundred fifty-four thousand, two hundred twenty-four".