242189826 has 32 divisors (see below), whose sum is σ = 496108800. Its totient is φ = 78798720.

The previous prime is 242189821. The next prime is 242189851. The reversal of 242189826 is 628981242.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (242189821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39316 + ... + 45056.

It is an arithmetic number, because the mean of its divisors is an integer number (15503400).

Almost surely, 2^242189826 is an apocalyptic number.

242189826 is an abundant number, since it is smaller than the sum of its proper divisors (253918974).

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

242189826 is a wasteful number, since it uses less digits than its factorization.

242189826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5914.

The product of its digits is 110592, while the sum is 42.

The square root of 242189826 is about 15562.4492288328. The cubic root of 242189826 is about 623.3308645337.

The spelling of 242189826 in words is "two hundred forty-two million, one hundred eighty-nine thousand, eight hundred twenty-six".