642420114 has 16 divisors (see below), whose sum is σ = 1468388928. Its totient is φ = 183548592.

The previous prime is 642420091. The next prime is 642420127. The reversal of 642420114 is 411024246.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7647817 + ... + 7647900.

It is an arithmetic number, because the mean of its divisors is an integer number (91774308).

Almost surely, 2^642420114 is an apocalyptic number.

642420114 is an abundant number, since it is smaller than the sum of its proper divisors (825968814).

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

642420114 is a wasteful number, since it uses less digits than its factorization.

642420114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15295729.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 642420114 is about 25346.0078513363. The cubic root of 642420114 is about 862.8587550197.

The spelling of 642420114 in words is "six hundred forty-two million, four hundred twenty thousand, one hundred fourteen".