1634728467 has 16 divisors (see below), whose sum is σ = 2199226880. Its totient is φ = 1080063072.

The previous prime is 1634728457. The next prime is 1634728471. The reversal of 1634728467 is 7648274361.

It is a happy number.

It is not a de Polignac number, because 1634728467 - 2¹⁰ = 1634727443 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1634728457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174909 + ... + 184017.

It is an arithmetic number, because the mean of its divisors is an integer number (137451680).

Almost surely, 2^1634728467 is an apocalyptic number.

1634728467 is a deficient number, since it is larger than the sum of its proper divisors (564498413).

1634728467 is a wasteful number, since it uses less digits than its factorization.

1634728467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9642.

The product of its digits is 1354752, while the sum is 48.

The square root of 1634728467 is about 40431.7754618815. The cubic root of 1634728467 is about 1178.0088191849.

The spelling of 1634728467 in words is "one billion, six hundred thirty-four million, seven hundred twenty-eight thousand, four hundred sixty-seven".