126218398 has 8 divisors (see below), whose sum is σ = 190489608. Its totient is φ = 62721864.

The previous prime is 126218383. The next prime is 126218399. The reversal of 126218398 is 893812621.

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

It is a self number, because there is not a number n which added to its sum of digits gives 126218398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126218399) 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, 193261 + ... + 193912.

It is an arithmetic number, because the mean of its divisors is an integer number (23811201).

Almost surely, 2^126218398 is an apocalyptic number.

126218398 is a deficient number, since it is larger than the sum of its proper divisors (64271210).

126218398 is a wasteful number, since it uses less digits than its factorization.

126218398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387338.

The product of its digits is 41472, while the sum is 40.

The square root of 126218398 is about 11234.6961685664. The cubic root of 126218398 is about 501.6192808645.

The spelling of 126218398 in words is "one hundred twenty-six million, two hundred eighteen thousand, three hundred ninety-eight".