242374621 has 8 divisors (see below), whose sum is σ = 266224320. Its totient is φ = 219634272.

The previous prime is 242374589. The next prime is 242374631. The reversal of 242374621 is 126473242.

It is a happy number.

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 242374621 - 2⁵ = 242374589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242374631) 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, 276880 + ... + 277753.

It is an arithmetic number, because the mean of its divisors is an integer number (33278040).

Almost surely, 2^242374621 is an apocalyptic number.

It is an amenable number.

242374621 is a deficient number, since it is larger than the sum of its proper divisors (23849699).

242374621 is a wasteful number, since it uses less digits than its factorization.

242374621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554675.

The product of its digits is 16128, while the sum is 31.

The square root of 242374621 is about 15568.3853048413. The cubic root of 242374621 is about 623.4893616164.

The spelling of 242374621 in words is "two hundred forty-two million, three hundred seventy-four thousand, six hundred twenty-one".