140215680 has 192 divisors, whose sum is σ = 528437520. Its totient is φ = 33976320.

The previous prime is 140215679. The next prime is 140215709. The reversal of 140215680 is 86512041.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62254 + ... + 64466.

Almost surely, 2^140215680 is an apocalyptic number.

140215680 is a gapful number since it is divisible by the number (10) 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 140215680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264218760).

140215680 is an abundant number, since it is smaller than the sum of its proper divisors (388221840).

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

140215680 is a wasteful number, since it uses less digits than its factorization.

140215680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2249 (or 2234 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 140215680 is about 11841.2702021363. The cubic root of 140215680 is about 519.5159203078.

It can be divided in two parts, 14021 and 5680, that added together give a triangular number (19701 = T₁₉₈).

The spelling of 140215680 in words is "one hundred forty million, two hundred fifteen thousand, six hundred eighty".