642714470 has 16 divisors (see below), whose sum is σ = 1162762128. Its totient is φ = 255780000.

The previous prime is 642714431. The next prime is 642714473. The reversal of 642714470 is 74417246.

642714470 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 642714470.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642714473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161156 + ... + 165095.

It is an arithmetic number, because the mean of its divisors is an integer number (72672633).

Almost surely, 2^642714470 is an apocalyptic number.

642714470 is a deficient number, since it is larger than the sum of its proper divisors (520047658).

642714470 is a wasteful number, since it uses less digits than its factorization.

642714470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326455.

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 642714470 is about 25351.8139390459. The cubic root of 642714470 is about 862.9905217893.

The spelling of 642714470 in words is "six hundred forty-two million, seven hundred fourteen thousand, four hundred seventy".