1982148346 has 4 divisors (see below), whose sum is σ = 2973222522. Its totient is φ = 991074172.

The previous prime is 1982148313. The next prime is 1982148353. The reversal of 1982148346 is 6438412891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6438412891 = 9967 ⋅645973.

It can be written as a sum of positive squares in only one way, i.e., 1703625625 + 278522721 = 41275^2 + 16689^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1982148296 and 1982148305.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495537085 + ... + 495537088.

Almost surely, 2^1982148346 is an apocalyptic number.

1982148346 is a deficient number, since it is larger than the sum of its proper divisors (991074176).

1982148346 is an equidigital number, since it uses as much as digits as its factorization.

1982148346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991074175.

The product of its digits is 331776, while the sum is 46.

The square root of 1982148346 is about 44521.3246209050. The cubic root of 1982148346 is about 1256.1612286604.

The spelling of 1982148346 in words is "one billion, nine hundred eighty-two million, one hundred forty-eight thousand, three hundred forty-six".