242743800 has 96 divisors (see below), whose sum is σ = 810416880. Its totient is φ = 59750400.

The previous prime is 242743793. The next prime is 242743801. The reversal of 242743800 is 8347242.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242743801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7761 + ... + 23360.

Almost surely, 2^242743800 is an apocalyptic number.

242743800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242743800 is an abundant number, since it is smaller than the sum of its proper divisors (567673080).

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

242743800 is a wasteful number, since it uses less digits than its factorization.

242743800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31153 (or 31144 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 242743800 is about 15580.2374821438. The cubic root of 242743800 is about 623.8057621938.

The spelling of 242743800 in words is "two hundred forty-two million, seven hundred forty-three thousand, eight hundred".