1634440054 has 8 divisors (see below), whose sum is σ = 2640249360. Its totient is φ = 754356936.

The previous prime is 1634440051. The next prime is 1634440057. The reversal of 1634440054 is 4500444361.

It is an interprime number because it is at equal distance from previous prime (1634440051) and next prime (1634440057).

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

It is a junction number, because it is equal to n+sod(n) for n = 1634439998 and 1634440025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1634440051) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 31431514 + ... + 31431565.

It is an arithmetic number, because the mean of its divisors is an integer number (330031170).

Almost surely, 2^1634440054 is an apocalyptic number.

1634440054 is a deficient number, since it is larger than the sum of its proper divisors (1005809306).

1634440054 is a wasteful number, since it uses less digits than its factorization.

1634440054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62863094.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 1634440054 is about 40428.2086419866. The cubic root of 1634440054 is about 1177.9395369264.

The spelling of 1634440054 in words is "one billion, six hundred thirty-four million, four hundred forty thousand, fifty-four".