1634440055 has 8 divisors (see below), whose sum is σ = 1983366000. Its totient is φ = 1292860096.

The previous prime is 1634440051. The next prime is 1634440057. The reversal of 1634440055 is 5500444361.

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

It is a cyclic number.

It is not a de Polignac number, because 1634440055 - 2² = 1634440051 is a prime.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1836005 + ... + 1836894.

It is an arithmetic number, because the mean of its divisors is an integer number (247920750).

Almost surely, 2^1634440055 is an apocalyptic number.

1634440055 is a deficient number, since it is larger than the sum of its proper divisors (348925945).

1634440055 is an equidigital number, since it uses as much as digits as its factorization.

1634440055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3672993.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 1634440055 is about 40428.2086543542. The cubic root of 1634440055 is about 1177.9395371667.

The spelling of 1634440055 in words is "one billion, six hundred thirty-four million, four hundred forty thousand, fifty-five".