1981348 has 6 divisors (see below), whose sum is σ = 3467366. Its totient is φ = 990672.

The previous prime is 1981337. The next prime is 1981349. The reversal of 1981348 is 8431891.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1272384 + 708964 = 1128^2 + 842^2 .

It is a super-3 number, since 3×1981348³ = 23334770680941648576, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1981349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247665 + ... + 247672.

2^1981348 is an apocalyptic number.

It is an amenable number.

1981348 is a deficient number, since it is larger than the sum of its proper divisors (1486018).

1981348 is a wasteful number, since it uses less digits than its factorization.

1981348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495341 (or 495339 counting only the distinct ones).

The product of its digits is 6912, while the sum is 34.

The square root of 1981348 is about 1407.6036373923. The cubic root of 1981348 is about 125.5992136211.

The spelling of 1981348 in words is "one million, nine hundred eighty-one thousand, three hundred forty-eight".