124404442402 has 8 divisors (see below), whose sum is σ = 186656663196. Its totient is φ = 62185554672.

The previous prime is 124404442391. The next prime is 124404442403. The reversal of 124404442402 is 204244404421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 114628967761 + 9775474641 = 338569^2 + 98871^2 .

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

It is not an unprimeable number, because it can be changed into a prime (124404442403) 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, 8323933 + ... + 8338864.

Almost surely, 2^124404442402 is an apocalyptic number.

124404442402 is a deficient number, since it is larger than the sum of its proper divisors (62252220794).

124404442402 is a wasteful number, since it uses less digits than its factorization.

124404442402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16666532.

The product of its (nonzero) digits is 32768, while the sum is 31.

Adding to 124404442402 its reverse (204244404421), we get a palindrome (328648846823).

The spelling of 124404442402 in words is "one hundred twenty-four billion, four hundred four million, four hundred forty-two thousand, four hundred two".