242090340 has 48 divisors (see below), whose sum is σ = 681670080. Its totient is φ = 64193920.

The previous prime is 242090339. The next prime is 242090351. The reversal of 242090340 is 43090242.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 242090340.

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, 531 + ... + 22010.

It is an arithmetic number, because the mean of its divisors is an integer number (14201460).

Almost surely, 2^242090340 is an apocalyptic number.

242090340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242090340 is an abundant number, since it is smaller than the sum of its proper divisors (439579740).

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

242090340 is a wasteful number, since it uses less digits than its factorization.

242090340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22732 (or 22730 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 242090340 is about 15559.2525527417. The cubic root of 242090340 is about 623.2455028590.

The spelling of 242090340 in words is "two hundred forty-two million, ninety thousand, three hundred forty".