1634485494 has 8 divisors (see below), whose sum is σ = 3268971000. Its totient is φ = 544828496.

The previous prime is 1634485493. The next prime is 1634485529. The reversal of 1634485494 is 4945844361.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

1634485494 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1634485493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136207119 + ... + 136207130.

It is an arithmetic number, because the mean of its divisors is an integer number (408621375).

Almost surely, 2^1634485494 is an apocalyptic number.

1634485494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1634485494 is a wasteful number, since it uses less digits than its factorization.

1634485494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272414254.

The product of its digits is 1658880, while the sum is 48.

The square root of 1634485494 is about 40428.7706219222. The cubic root of 1634485494 is about 1177.9504530149.

The spelling of 1634485494 in words is "one billion, six hundred thirty-four million, four hundred eighty-five thousand, four hundred ninety-four".