243402414728 has 32 divisors (see below), whose sum is σ = 497887560000. Its totient is φ = 110633242560.

The previous prime is 243402414719. The next prime is 243402414737. The reversal of 243402414728 is 827414204342.

243402414728 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (243402414719) and next prime (243402414737).

It is a super-2 number, since 2×243402414728² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4272173 + ... + 4328771.

It is an arithmetic number, because the mean of its divisors is an integer number (15558986250).

Almost surely, 2^243402414728 is an apocalyptic number.

It is an amenable number.

243402414728 is an abundant number, since it is smaller than the sum of its proper divisors (254485145272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243402414728 is a wasteful number, since it uses less digits than its factorization.

243402414728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105485 (or 105481 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 41.

The spelling of 243402414728 in words is "two hundred forty-three billion, four hundred two million, four hundred fourteen thousand, seven hundred twenty-eight".