140442659442 has 24 divisors (see below), whose sum is σ = 320307820560. Its totient is φ = 44350313400.

The previous prime is 140442659429. The next prime is 140442659443. The reversal of 140442659442 is 244956244041.

140442659442 is a `hidden beast` number, since 14 + 0 + 4 + 4 + 2 + 6 + 594 + 42 = 666.

It is a super-2 number, since 2×140442659442² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140442659443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 205325184 + ... + 205325867.

It is an arithmetic number, because the mean of its divisors is an integer number (13346159190).

Almost surely, 2^140442659442 is an apocalyptic number.

140442659442 is an abundant number, since it is smaller than the sum of its proper divisors (179865161118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140442659442 is a wasteful number, since it uses less digits than its factorization.

140442659442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410651078 (or 410651075 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 45.

The spelling of 140442659442 in words is "one hundred forty billion, four hundred forty-two million, six hundred fifty-nine thousand, four hundred forty-two".