1634424636 has 48 divisors (see below), whose sum is σ = 4133237024. Its totient is φ = 499689216.

The previous prime is 1634424607. The next prime is 1634424647. The reversal of 1634424636 is 6364244361.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1634424594 and 1634424603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8875 + ... + 57858.

Almost surely, 2^1634424636 is an apocalyptic number.

It is an amenable number.

1634424636 is an abundant number, since it is smaller than the sum of its proper divisors (2498812388).

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

1634424636 is a wasteful number, since it uses less digits than its factorization.

1634424636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66910 (or 66908 counting only the distinct ones).

The product of its digits is 248832, while the sum is 39.

The square root of 1634424636 is about 40428.0179578470. The cubic root of 1634424636 is about 1177.9358330017.

Adding to 1634424636 its reverse (6364244361), we get a palindrome (7998668997).

The spelling of 1634424636 in words is "one billion, six hundred thirty-four million, four hundred twenty-four thousand, six hundred thirty-six".