642741462 has 48 divisors (see below), whose sum is σ = 1599174720. Its totient is φ = 184518000.

The previous prime is 642741439. The next prime is 642741503. The reversal of 642741462 is 264147246.

642741462 is a `hidden beast` number, since 642 + 7 + 4 + 1 + 4 + 6 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81664 + ... + 89187.

It is an arithmetic number, because the mean of its divisors is an integer number (33316140).

Almost surely, 2^642741462 is an apocalyptic number.

642741462 is an abundant number, since it is smaller than the sum of its proper divisors (956433258).

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

642741462 is a wasteful number, since it uses less digits than its factorization.

642741462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170889 (or 170886 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 642741462 is about 25352.3462819519. The cubic root of 642741462 is about 863.0026025888.

The spelling of 642741462 in words is "six hundred forty-two million, seven hundred forty-one thousand, four hundred sixty-two".