242497408 has 32 divisors (see below), whose sum is σ = 496166760. Its totient is φ = 117969408.

The previous prime is 242497403. The next prime is 242497429. The reversal of 242497408 is 804794242.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242497403) 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 3 ways as a sum of consecutive naturals, for example, 20866 + ... + 30337.

Almost surely, 2^242497408 is an apocalyptic number.

It is an amenable number.

242497408 is an abundant number, since it is smaller than the sum of its proper divisors (253669352).

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

242497408 is an equidigital number, since it uses as much as digits as its factorization.

242497408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51254 (or 51242 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 242497408 is about 15572.3282780707. The cubic root of 242497408 is about 623.5946304268.

The spelling of 242497408 in words is "two hundred forty-two million, four hundred ninety-seven thousand, four hundred eight".