243053355400 has 48 divisors (see below), whose sum is σ = 598340180340. Its totient is φ = 91502438400.

The previous prime is 243053355367. The next prime is 243053355421. The reversal of 243053355400 is 4553350342.

It can be written as a sum of positive squares in 6 ways, for example, as 162036841444 + 81016513956 = 402538^2 + 284634^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35739741 + ... + 35746540.

Almost surely, 2^243053355400 is an apocalyptic number.

243053355400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243053355400 is an abundant number, since it is smaller than the sum of its proper divisors (355286824940).

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

243053355400 is a wasteful number, since it uses less digits than its factorization.

243053355400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71486314 (or 71486305 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 34.

The spelling of 243053355400 in words is "two hundred forty-three billion, fifty-three million, three hundred fifty-five thousand, four hundred".