642424014 has 16 divisors (see below), whose sum is σ = 1427609040. Its totient is φ = 214141320.

The previous prime is 642423997. The next prime is 642424021. The reversal of 642424014 is 410424246.

It is a happy number.

642424014 is a `hidden beast` number, since 642 + 4 + 2 + 4 + 0 + 14 = 666.

642424014 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×642424014² = 825417227527744392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5948317 + ... + 5948424.

It is an arithmetic number, because the mean of its divisors is an integer number (89225565).

Almost surely, 2^642424014 is an apocalyptic number.

642424014 is an abundant number, since it is smaller than the sum of its proper divisors (785185026).

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

642424014 is a wasteful number, since it uses less digits than its factorization.

642424014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11896752 (or 11896746 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 642424014 is about 25346.0847864123. The cubic root of 642424014 is about 862.8605010954.

The spelling of 642424014 in words is "six hundred forty-two million, four hundred twenty-four thousand, fourteen".