642382119 has 24 divisors (see below), whose sum is σ = 939317184. Its totient is φ = 423000000.

The previous prime is 642382109. The next prime is 642382121. The reversal of 642382119 is 911283246.

642382119 is a `hidden beast` number, since 642 + 3 + 8 + 2 + 1 + 1 + 9 = 666.

It is not a de Polignac number, because 642382119 - 2⁷ = 642381991 is a prime.

It is a super-2 number, since 2×642382119² = 825309573621860322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642382109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 682189 + ... + 683129.

It is an arithmetic number, because the mean of its divisors is an integer number (39138216).

Almost surely, 2^642382119 is an apocalyptic number.

642382119 is a deficient number, since it is larger than the sum of its proper divisors (296935065).

642382119 is a wasteful number, since it uses less digits than its factorization.

642382119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799 (or 1796 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 642382119 is about 25345.2583139332. The cubic root of 642382119 is about 862.8417438438.

The spelling of 642382119 in words is "six hundred forty-two million, three hundred eighty-two thousand, one hundred nineteen".