1642622432 has 36 divisors (see below), whose sum is σ = 3554639928. Its totient is φ = 746644800.

The previous prime is 1642622413. The next prime is 1642622461. The reversal of 1642622432 is 2342262461.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 208244 + ... + 215987.

It is an arithmetic number, because the mean of its divisors is an integer number (98739998).

Almost surely, 2^1642622432 is an apocalyptic number.

It is an amenable number.

1642622432 is an abundant number, since it is smaller than the sum of its proper divisors (1912017496).

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

1642622432 is a wasteful number, since it uses less digits than its factorization.

1642622432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424263 (or 424244 counting only the distinct ones).

The product of its digits is 27648, while the sum is 32.

The square root of 1642622432 is about 40529.2787007122. The cubic root of 1642622432 is about 1179.9019433983.

Adding to 1642622432 its reverse (2342262461), we get a palindrome (3984884893).

The spelling of 1642622432 in words is "one billion, six hundred forty-two million, six hundred twenty-two thousand, four hundred thirty-two".