1642334534 has 8 divisors (see below), whose sum is σ = 2472869520. Its totient is φ = 818044696.

The previous prime is 1642334531. The next prime is 1642334549. The reversal of 1642334534 is 4354332461.

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

It is a junction number, because it is equal to n+sod(n) for n = 1642334494 and 1642334503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642334531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1560629 + ... + 1561680.

It is an arithmetic number, because the mean of its divisors is an integer number (309108690).

Almost surely, 2^1642334534 is an apocalyptic number.

1642334534 is a deficient number, since it is larger than the sum of its proper divisors (830534986).

1642334534 is a wasteful number, since it uses less digits than its factorization.

1642334534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122574.

The product of its digits is 103680, while the sum is 35.

The square root of 1642334534 is about 40525.7268164311. The cubic root of 1642334534 is about 1179.8330066277.

Adding to 1642334534 its reverse (4354332461), we get a palindrome (5996666995).

The spelling of 1642334534 in words is "one billion, six hundred forty-two million, three hundred thirty-four thousand, five hundred thirty-four".