124218642 has 8 divisors (see below), whose sum is σ = 248437296. Its totient is φ = 41406212.

The previous prime is 124218623. The next prime is 124218649. The reversal of 124218642 is 246812421.

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

124218642 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (124218649) 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, 10351548 + ... + 10351559.

It is an arithmetic number, because the mean of its divisors is an integer number (31054662).

Almost surely, 2^124218642 is an apocalyptic number.

124218642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

124218642 is a wasteful number, since it uses less digits than its factorization.

124218642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20703112.

The product of its digits is 6144, while the sum is 30.

The square root of 124218642 is about 11145.3417175069. The cubic root of 124218642 is about 498.9560110245.

The spelling of 124218642 in words is "one hundred twenty-four million, two hundred eighteen thousand, six hundred forty-two".