1642137834 has 16 divisors (see below), whose sum is σ = 3293690400. Its totient is φ = 545810160.

The previous prime is 1642137829. The next prime is 1642137869. The reversal of 1642137834 is 4387312461.

It is a junction number, because it is equal to n+sod(n) for n = 1642137792 and 1642137801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390012 + ... + 394199.

It is an arithmetic number, because the mean of its divisors is an integer number (205855650).

Almost surely, 2^1642137834 is an apocalyptic number.

1642137834 is an abundant number, since it is smaller than the sum of its proper divisors (1651552566).

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

1642137834 is a wasteful number, since it uses less digits than its factorization.

1642137834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784565.

The product of its digits is 96768, while the sum is 39.

The square root of 1642137834 is about 40523.2998903100. The cubic root of 1642137834 is about 1179.7859024572.

The spelling of 1642137834 in words is "one billion, six hundred forty-two million, one hundred thirty-seven thousand, eight hundred thirty-four".