140840396928 has 384 divisors, whose sum is σ = 506280378240. Its totient is φ = 36510105600.

The previous prime is 140840396923. The next prime is 140840396929. The reversal of 140840396928 is 829693048041.

140840396928 is a `hidden beast` number, since 140 + 8 + 403 + 9 + 6 + 92 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is not an unprimeable number, because it can be changed into a prime (140840396923) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56858026 + ... + 56860502.

It is an arithmetic number, because the mean of its divisors is an integer number (1318438485).

Almost surely, 2^140840396928 is an apocalyptic number.

140840396928 is a gapful number since it is divisible by the number (18) 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 140840396928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253140189120).

140840396928 is an abundant number, since it is smaller than the sum of its proper divisors (365439981312).

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

140840396928 is a wasteful number, since it uses less digits than its factorization.

140840396928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3156 (or 3141 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 140840396928 in words is "one hundred forty billion, eight hundred forty million, three hundred ninety-six thousand, nine hundred twenty-eight".