840972148 has 12 divisors (see below), whose sum is σ = 1549159360. Its totient is φ = 398355192.

The previous prime is 840972137. The next prime is 840972163. The reversal of 840972148 is 841279048.

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, 5532636 + ... + 5532787.

Almost surely, 2^840972148 is an apocalyptic number.

It is an amenable number.

840972148 is a deficient number, since it is larger than the sum of its proper divisors (708187212).

840972148 is a wasteful number, since it uses less digits than its factorization.

840972148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11065446 (or 11065444 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 840972148 is about 28999.5197891275. The cubic root of 840972148 is about 943.9026475423.

The spelling of 840972148 in words is "eight hundred forty million, nine hundred seventy-two thousand, one hundred forty-eight".