140666976 has 192 divisors, whose sum is σ = 444346560. Its totient is φ = 43130880.

The previous prime is 140666957. The next prime is 140667017. The reversal of 140666976 is 679666041.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 895890 + ... + 896046.

It is an arithmetic number, because the mean of its divisors is an integer number (2314305).

Almost surely, 2^140666976 is an apocalyptic number.

140666976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140666976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222173280).

140666976 is an abundant number, since it is smaller than the sum of its proper divisors (303679584).

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

140666976 is a wasteful number, since it uses less digits than its factorization.

140666976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 140666976 is about 11860.3109571377. The cubic root of 140666976 is about 520.0726920074.

The spelling of 140666976 in words is "one hundred forty million, six hundred sixty-six thousand, nine hundred seventy-six".