840148402142 has 24 divisors (see below), whose sum is σ = 1466035483320. Its totient is φ = 360048311280.

The previous prime is 840148402087. The next prime is 840148402169. The reversal of 840148402142 is 241204841048.

It is a junction number, because it is equal to n+sod(n) for n = 840148402096 and 840148402105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2310917 + ... + 2649647.

It is an arithmetic number, because the mean of its divisors is an integer number (61084811805).

Almost surely, 2^840148402142 is an apocalyptic number.

840148402142 is a deficient number, since it is larger than the sum of its proper divisors (625887081178).

840148402142 is a wasteful number, since it uses less digits than its factorization.

840148402142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364056 (or 364049 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 38.

The spelling of 840148402142 in words is "eight hundred forty billion, one hundred forty-eight million, four hundred two thousand, one hundred forty-two".