642010045 has 8 divisors (see below), whose sum is σ = 781263360. Its totient is φ = 506373840.

The previous prime is 642010009. The next prime is 642010067. The reversal of 642010045 is 540010246.

642010045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 642010045 - 2¹³ = 642001853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 642009998 and 642010025.

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, 903885 + ... + 904594.

It is an arithmetic number, because the mean of its divisors is an integer number (97657920).

Almost surely, 2^642010045 is an apocalyptic number.

It is an amenable number.

642010045 is a deficient number, since it is larger than the sum of its proper divisors (139253315).

642010045 is a wasteful number, since it uses less digits than its factorization.

642010045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808555.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 642010045 is about 25337.9171401282. The cubic root of 642010045 is about 862.6751228806.

The spelling of 642010045 in words is "six hundred forty-two million, ten thousand, forty-five".