642411488 has 12 divisors (see below), whose sum is σ = 1264747680. Its totient is φ = 321205728.

The previous prime is 642411467. The next prime is 642411533. The reversal of 642411488 is 884114246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10037648 + ... + 10037711.

It is an arithmetic number, because the mean of its divisors is an integer number (105395640).

Almost surely, 2^642411488 is an apocalyptic number.

It is an amenable number.

642411488 is a deficient number, since it is larger than the sum of its proper divisors (622336192).

642411488 is a wasteful number, since it uses less digits than its factorization.

642411488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20075369 (or 20075361 counting only the distinct ones).

The product of its digits is 49152, while the sum is 38.

The square root of 642411488 is about 25345.8376859002. The cubic root of 642411488 is about 862.8548930335.

The spelling of 642411488 in words is "six hundred forty-two million, four hundred eleven thousand, four hundred eighty-eight".