242061421 has 12 divisors (see below), whose sum is σ = 287575488. Its totient is φ = 203064792.

The previous prime is 242061409. The next prime is 242061431. The reversal of 242061421 is 124160242.

It is a happy number.

It is not a de Polignac number, because 242061421 - 2⁵ = 242061389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242061392 and 242061401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242061401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50251 + ... + 54856.

It is an arithmetic number, because the mean of its divisors is an integer number (23964624).

Almost surely, 2^242061421 is an apocalyptic number.

It is an amenable number.

242061421 is a deficient number, since it is larger than the sum of its proper divisors (45514067).

242061421 is a wasteful number, since it uses less digits than its factorization.

242061421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105168 (or 105161 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 242061421 is about 15558.3232065670. The cubic root of 242061421 is about 623.2206851891.

The spelling of 242061421 in words is "two hundred forty-two million, sixty-one thousand, four hundred twenty-one".