642741162 has 32 divisors (see below), whose sum is σ = 1494028800. Its totient is φ = 180527088.

The previous prime is 642741161. The next prime is 642741223. The reversal of 642741162 is 261147246.

It is a super-2 number, since 2×642741162² = 826232402658220488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (642741161) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 127212 + ... + 132167.

It is an arithmetic number, because the mean of its divisors is an integer number (46688400).

Almost surely, 2^642741162 is an apocalyptic number.

642741162 is an abundant number, since it is smaller than the sum of its proper divisors (851287638).

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

642741162 is a wasteful number, since it uses less digits than its factorization.

642741162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259450.

The product of its digits is 16128, while the sum is 33.

The square root of 642741162 is about 25352.3403653391. The cubic root of 642741162 is about 863.0024683198.

The spelling of 642741162 in words is "six hundred forty-two million, seven hundred forty-one thousand, one hundred sixty-two".