242403986 has 32 divisors (see below), whose sum is σ = 429789888. Its totient is φ = 101283840.

The previous prime is 242403979. The next prime is 242403989. The reversal of 242403986 is 689304242.

It is a happy number.

242403986 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (242403989) 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, 8546 + ... + 23618.

It is an arithmetic number, because the mean of its divisors is an integer number (13430934).

Almost surely, 2^242403986 is an apocalyptic number.

242403986 is a deficient number, since it is larger than the sum of its proper divisors (187385902).

242403986 is a wasteful number, since it uses less digits than its factorization.

242403986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15146.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 242403986 is about 15569.3283734399. The cubic root of 242403986 is about 623.5145403056.

The spelling of 242403986 in words is "two hundred forty-two million, four hundred three thousand, nine hundred eighty-six".