1642324436 has 12 divisors (see below), whose sum is σ = 2874798612. Its totient is φ = 820953408.

The previous prime is 1642324399. The next prime is 1642324441. The reversal of 1642324436 is 6344232461.

It can be written as a sum of positive squares in 2 ways, for example, as 328696900 + 1313627536 = 18130^2 + 36244^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1642324396 and 1642324405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33785 + ... + 66528.

It is an arithmetic number, because the mean of its divisors is an integer number (239566551).

Almost surely, 2^1642324436 is an apocalyptic number.

It is an amenable number.

1642324436 is a deficient number, since it is larger than the sum of its proper divisors (1232474176).

1642324436 is a wasteful number, since it uses less digits than its factorization.

1642324436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104410 (or 104408 counting only the distinct ones).

The product of its digits is 82944, while the sum is 35.

The square root of 1642324436 is about 40525.6022287146. The cubic root of 1642324436 is about 1179.8305885296.

Adding to 1642324436 its reverse (6344232461), we get a palindrome (7986556897).

The spelling of 1642324436 in words is "one billion, six hundred forty-two million, three hundred twenty-four thousand, four hundred thirty-six".