642629162 has 32 divisors (see below), whose sum is σ = 1130661504. Its totient is φ = 268185600.

The previous prime is 642629161. The next prime is 642629173. The reversal of 642629162 is 261926246.

It is not an unprimeable number, because it can be changed into a prime (642629161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 556778 + ... + 557930.

It is an arithmetic number, because the mean of its divisors is an integer number (35333172).

Almost surely, 2^642629162 is an apocalyptic number.

642629162 is a deficient number, since it is larger than the sum of its proper divisors (488032342).

642629162 is a wasteful number, since it uses less digits than its factorization.

642629162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174.

The product of its digits is 62208, while the sum is 38.

The square root of 642629162 is about 25350.1314000539. The cubic root of 642629162 is about 862.9523382950.

The spelling of 642629162 in words is "six hundred forty-two million, six hundred twenty-nine thousand, one hundred sixty-two".