1982478534 has 16 divisors (see below), whose sum is σ = 3970203888. Its totient is φ = 659951712.

The previous prime is 1982478527. The next prime is 1982478569. The reversal of 1982478534 is 4358742891.

It is a happy number.

It is a super-2 number, since 2×1982478534² = 7860442275541578312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213697 + ... + 222780.

It is an arithmetic number, because the mean of its divisors is an integer number (248137743).

Almost surely, 2^1982478534 is an apocalyptic number.

1982478534 is an abundant number, since it is smaller than the sum of its proper divisors (1987725354).

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

1982478534 is a wasteful number, since it uses less digits than its factorization.

1982478534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437239.

The product of its digits is 1935360, while the sum is 51.

The square root of 1982478534 is about 44525.0326670290. The cubic root of 1982478534 is about 1256.2309755986.

The spelling of 1982478534 in words is "one billion, nine hundred eighty-two million, four hundred seventy-eight thousand, five hundred thirty-four".