242197489 has 8 divisors (see below), whose sum is σ = 246216960. Its totient is φ = 238202016.

The previous prime is 242197477. The next prime is 242197493. The reversal of 242197489 is 984791242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242197489 - 2¹¹ = 242195441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242197409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14949 + ... + 26605.

It is an arithmetic number, because the mean of its divisors is an integer number (30777120).

Almost surely, 2^242197489 is an apocalyptic number.

It is an amenable number.

242197489 is a deficient number, since it is larger than the sum of its proper divisors (4019471).

242197489 is a wasteful number, since it uses less digits than its factorization.

242197489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11999.

The product of its digits is 290304, while the sum is 46.

The square root of 242197489 is about 15562.6954284918. The cubic root of 242197489 is about 623.3374386250.

The spelling of 242197489 in words is "two hundred forty-two million, one hundred ninety-seven thousand, four hundred eighty-nine".