1642632134 has 16 divisors (see below), whose sum is σ = 2894708880. Its totient is φ = 689216160.

The previous prime is 1642632133. The next prime is 1642632151. The reversal of 1642632134 is 4312362461.

It is a self number, because there is not a number n which added to its sum of digits gives 1642632134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642632133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2871449 + ... + 2872020.

It is an arithmetic number, because the mean of its divisors is an integer number (180919305).

Almost surely, 2^1642632134 is an apocalyptic number.

1642632134 is a deficient number, since it is larger than the sum of its proper divisors (1252076746).

1642632134 is a wasteful number, since it uses less digits than its factorization.

1642632134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5743495.

The product of its digits is 20736, while the sum is 32.

The square root of 1642632134 is about 40529.3983917847. The cubic root of 1642632134 is about 1179.9042663883.

Adding to 1642632134 its reverse (4312362461), we get a palindrome (5954994595).

The spelling of 1642632134 in words is "one billion, six hundred forty-two million, six hundred thirty-two thousand, one hundred thirty-four".