242022440 has 64 divisors (see below), whose sum is σ = 595719360. Its totient is φ = 87761920.

The previous prime is 242022427. The next prime is 242022461. The reversal of 242022440 is 44220242.

242022440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×242022440² = 117149722927107200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247232 + ... + 248208.

It is an arithmetic number, because the mean of its divisors is an integer number (9308115).

Almost surely, 2^242022440 is an apocalyptic number.

242022440 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 242022440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297859680).

242022440 is an abundant number, since it is smaller than the sum of its proper divisors (353696920).

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

242022440 is a wasteful number, since it uses less digits than its factorization.

242022440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562 (or 1558 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 242022440 is about 15557.0704183018. The cubic root of 242022440 is about 623.1872293970.

Adding to 242022440 its reverse (44220242), we get a palindrome (286242682).

The spelling of 242022440 in words is "two hundred forty-two million, twenty-two thousand, four hundred forty".