243946225402 has 16 divisors (see below), whose sum is σ = 402717344832. Its totient is φ = 109903366720.

The previous prime is 243946225373. The next prime is 243946225409. The reversal of 243946225402 is 204522649342.

It is not an unprimeable number, because it can be changed into a prime (243946225409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49061518 + ... + 49066489.

It is an arithmetic number, because the mean of its divisors is an integer number (25169834052).

Almost surely, 2^243946225402 is an apocalyptic number.

243946225402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243946225402 is a deficient number, since it is larger than the sum of its proper divisors (158771119430).

243946225402 is a wasteful number, since it uses less digits than its factorization.

243946225402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98128133.

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 243946225402 in words is "two hundred forty-three billion, nine hundred forty-six million, two hundred twenty-five thousand, four hundred two".