1996458545 has 8 divisors (see below), whose sum is σ = 2407790400. Its totient is φ = 1589140080.

The previous prime is 1996458539. The next prime is 1996458547. The reversal of 1996458545 is 5458546991.

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

It is not a de Polignac number, because 1996458545 - 2¹⁰ = 1996457521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1996458547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1002251 + ... + 1004240.

It is an arithmetic number, because the mean of its divisors is an integer number (300973800).

Almost surely, 2^1996458545 is an apocalyptic number.

It is an amenable number.

1996458545 is a deficient number, since it is larger than the sum of its proper divisors (411331855).

1996458545 is a wasteful number, since it uses less digits than its factorization.

1996458545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006695.

The product of its digits is 7776000, while the sum is 56.

The square root of 1996458545 is about 44681.7473360208. The cubic root of 1996458545 is about 1259.1769515732.

The spelling of 1996458545 in words is "one billion, nine hundred ninety-six million, four hundred fifty-eight thousand, five hundred forty-five".