242120440 has 16 divisors (see below), whose sum is σ = 544771080. Its totient is φ = 96848160.

The previous prime is 242120413. The next prime is 242120503. The reversal of 242120440 is 44021242.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3026466 + ... + 3026545.

Almost surely, 2^242120440 is an apocalyptic number.

242120440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242120440 is an abundant number, since it is smaller than the sum of its proper divisors (302650640).

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

242120440 is a wasteful number, since it uses less digits than its factorization.

242120440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6053022 (or 6053018 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 242120440 is about 15560.2197927921. The cubic root of 242120440 is about 623.2713319389.

Adding to 242120440 its reverse (44021242), we get a palindrome (286141682).

The spelling of 242120440 in words is "two hundred forty-two million, one hundred twenty thousand, four hundred forty".