242394023 has 4 divisors (see below), whose sum is σ = 242892240. Its totient is φ = 241895808.

The previous prime is 242394013. The next prime is 242394029. The reversal of 242394023 is 320493242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320493242 = 2 ⋅160246621.

It is a cyclic number.

It is not a de Polignac number, because 242394023 - 2⁶ = 242393959 is a prime.

It is a super-2 number, since 2×242394023² = 117509724772249058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242394029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248378 + ... + 249351.

It is an arithmetic number, because the mean of its divisors is an integer number (60723060).

Almost surely, 2^242394023 is an apocalyptic number.

242394023 is a deficient number, since it is larger than the sum of its proper divisors (498217).

242394023 is an equidigital number, since it uses as much as digits as its factorization.

242394023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498216.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 242394023 is about 15569.0084141541. The cubic root of 242394023 is about 623.5059978711.

The spelling of 242394023 in words is "two hundred forty-two million, three hundred ninety-four thousand, twenty-three".