242403646 has 8 divisors (see below), whose sum is σ = 384994080. Its totient is φ = 114072288.

The previous prime is 242403641. The next prime is 242403649. The reversal of 242403646 is 646304242.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242403641) 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, 3564726 + ... + 3564793.

It is an arithmetic number, because the mean of its divisors is an integer number (48124260).

Almost surely, 2^242403646 is an apocalyptic number.

242403646 is a deficient number, since it is larger than the sum of its proper divisors (142590434).

242403646 is a wasteful number, since it uses less digits than its factorization.

242403646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7129538.

The product of its (nonzero) digits is 27648, while the sum is 31.

The square root of 242403646 is about 15569.3174545322. The cubic root of 242403646 is about 623.5142487880.

Adding to 242403646 its reverse (646304242), we get a palindrome (888707888).

It can be divided in two parts, 242403 and 646, that added together give a square (243049 = 493²).

The spelling of 242403646 in words is "two hundred forty-two million, four hundred three thousand, six hundred forty-six".