1632439473 has 48 divisors (see below), whose sum is σ = 2637129600. Its totient is φ = 879766272.

The previous prime is 1632439469. The next prime is 1632439517. The reversal of 1632439473 is 3749342361.

It is a happy number.

It is not a de Polignac number, because 1632439473 - 2² = 1632439469 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1632439423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2645461 + ... + 2646077.

It is an arithmetic number, because the mean of its divisors is an integer number (54940200).

Almost surely, 2^1632439473 is an apocalyptic number.

It is an amenable number.

1632439473 is a deficient number, since it is larger than the sum of its proper divisors (1004690127).

1632439473 is a wasteful number, since it uses less digits than its factorization.

1632439473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014 (or 995 counting only the distinct ones).

The product of its digits is 326592, while the sum is 42.

The square root of 1632439473 is about 40403.4586762074. The cubic root of 1632439473 is about 1177.4587350363.

The spelling of 1632439473 in words is "one billion, six hundred thirty-two million, four hundred thirty-nine thousand, four hundred seventy-three".