242071740 has 84 divisors (see below), whose sum is σ = 762223224. Its totient is φ = 64548576.

The previous prime is 242071717. The next prime is 242071763. The reversal of 242071740 is 47170242.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (242071717) and next prime (242071763).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 6279 + ... + 22881.

It is an arithmetic number, because the mean of its divisors is an integer number (9074086).

Almost surely, 2^242071740 is an apocalyptic number.

242071740 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 242071740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381111612).

242071740 is an abundant number, since it is smaller than the sum of its proper divisors (520151484).

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

242071740 is a wasteful number, since it uses less digits than its factorization.

242071740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16630 (or 16613 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 242071740 is about 15558.6548261731. The cubic root of 242071740 is about 623.2295409620.

The spelling of 242071740 in words is "two hundred forty-two million, seventy-one thousand, seven hundred forty".