840143348 has 24 divisors (see below), whose sum is σ = 1616164704. Its totient is φ = 378965600.

The previous prime is 840143329. The next prime is 840143371. The reversal of 840143348 is 843341048.

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, 67115 + ... + 78642.

It is an arithmetic number, because the mean of its divisors is an integer number (67340196).

Almost surely, 2^840143348 is an apocalyptic number.

It is an amenable number.

840143348 is a deficient number, since it is larger than the sum of its proper divisors (776021356).

840143348 is a wasteful number, since it uses less digits than its factorization.

840143348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145903 (or 145901 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 840143348 is about 28985.2263748276. The cubic root of 840143348 is about 943.5924653912.

The spelling of 840143348 in words is "eight hundred forty million, one hundred forty-three thousand, three hundred forty-eight".