642032054 has 8 divisors (see below), whose sum is σ = 985444680. Its totient is φ = 313550496.

The previous prime is 642032033. The next prime is 642032087. The reversal of 642032054 is 450230246.

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

It is a Curzon number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 3732659 + ... + 3732830.

It is an arithmetic number, because the mean of its divisors is an integer number (123180585).

Almost surely, 2^642032054 is an apocalyptic number.

642032054 is a deficient number, since it is larger than the sum of its proper divisors (343412626).

642032054 is a wasteful number, since it uses less digits than its factorization.

642032054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7465534.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 642032054 is about 25338.3514459801. The cubic root of 642032054 is about 862.6849806702.

The spelling of 642032054 in words is "six hundred forty-two million, thirty-two thousand, fifty-four".