242447623 has 16 divisors (see below), whose sum is σ = 276950016. Its totient is φ = 210089440.

The previous prime is 242447561. The next prime is 242447641. The reversal of 242447623 is 326744242.

It is not a de Polignac number, because 242447623 - 2⁹ = 242447111 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 (242447663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78690 + ... + 81712.

It is an arithmetic number, because the mean of its divisors is an integer number (17309376).

Almost surely, 2^242447623 is an apocalyptic number.

242447623 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

242447623 is a deficient number, since it is larger than the sum of its proper divisors (34502393).

242447623 is a wasteful number, since it uses less digits than its factorization.

242447623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3374.

The product of its digits is 64512, while the sum is 34.

The square root of 242447623 is about 15570.7296874617. The cubic root of 242447623 is about 623.5519526050.

The spelling of 242447623 in words is "two hundred forty-two million, four hundred forty-seven thousand, six hundred twenty-three".