1482640891 has 4 divisors (see below), whose sum is σ = 1484079984. Its totient is φ = 1481201800.

The previous prime is 1482640883. The next prime is 1482640919. The reversal of 1482640891 is 1980462841.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1482640891 - 2³ = 1482640883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1482640871) 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, 718000 + ... + 720061.

It is an arithmetic number, because the mean of its divisors is an integer number (371019996).

Almost surely, 2^1482640891 is an apocalyptic number.

1482640891 is a deficient number, since it is larger than the sum of its proper divisors (1439093).

1482640891 is a wasteful number, since it uses less digits than its factorization.

1482640891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439092.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 1482640891 is about 38505.0761718504. The cubic root of 1482640891 is about 1140.2812712654.

The spelling of 1482640891 in words is "one billion, four hundred eighty-two million, six hundred forty thousand, eight hundred ninety-one".