1978352 has 20 divisors (see below), whose sum is σ = 3897816. Its totient is φ = 972480.

The previous prime is 1978349. The next prime is 1978363. The reversal of 1978352 is 2538791.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38 + ... + 1989.

2^1978352 is an apocalyptic number.

It is an amenable number.

1978352 is a deficient number, since it is larger than the sum of its proper divisors (1919464).

1978352 is a wasteful number, since it uses less digits than its factorization.

1978352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096 (or 2090 counting only the distinct ones).

The product of its digits is 15120, while the sum is 35.

The square root of 1978352 is about 1406.5390147451. The cubic root of 1978352 is about 125.5358754175.

The spelling of 1978352 in words is "one million, nine hundred seventy-eight thousand, three hundred fifty-two".