642006058 has 8 divisors (see below), whose sum is σ = 967898052. Its totient is φ = 319373376.

The previous prime is 642006049. The next prime is 642006059. The reversal of 642006058 is 850600246.

It can be written as a sum of positive squares in 2 ways, for example, as 514699969 + 127306089 = 22687^2 + 11283^2 .

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 (642006059) 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, 814335 + ... + 815122.

Almost surely, 2^642006058 is an apocalyptic number.

642006058 is a deficient number, since it is larger than the sum of its proper divisors (325891994).

642006058 is a wasteful number, since it uses less digits than its factorization.

642006058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629656.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 642006058 is about 25337.8384634522. The cubic root of 642006058 is about 862.6733370867.

The spelling of 642006058 in words is "six hundred forty-two million, six thousand, fifty-eight".