1638562482 has 12 divisors (see below), whose sum is σ = 3550218750. Its totient is φ = 546187488.

The previous prime is 1638562477. The next prime is 1638562487. The reversal of 1638562482 is 2842658361.

1638562482 is a `hidden beast` number, since 1 + 6 + 3 + 8 + 562 + 4 + 82 = 666.

It is an interprime number because it is at equal distance from previous prime (1638562477) and next prime (1638562487).

It can be written as a sum of positive squares in only one way, i.e., 890485281 + 748077201 = 29841^2 + 27351^2 .

It is not an unprimeable number, because it can be changed into a prime (1638562487) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45515607 + ... + 45515642.

Almost surely, 2^1638562482 is an apocalyptic number.

1638562482 is an abundant number, since it is smaller than the sum of its proper divisors (1911656268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1638562482 is a wasteful number, since it uses less digits than its factorization.

1638562482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91031257 (or 91031254 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 1638562482 is about 40479.1610832043. The cubic root of 1638562482 is about 1178.9290489021.

The spelling of 1638562482 in words is "one billion, six hundred thirty-eight million, five hundred sixty-two thousand, four hundred eighty-two".