140273280 has 384 divisors, whose sum is σ = 572832000. Its totient is φ = 31610880.

The previous prime is 140273279. The next prime is 140273281. The reversal of 140273280 is 82372041.

It is an interprime number because it is at equal distance from previous prime (140273279) and next prime (140273281).

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 (140273281) 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, 1975645 + ... + 1975715.

It is an arithmetic number, because the mean of its divisors is an integer number (1491750).

Almost surely, 2^140273280 is an apocalyptic number.

140273280 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 140273280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286416000).

140273280 is an abundant number, since it is smaller than the sum of its proper divisors (432558720).

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

140273280 is an equidigital number, since it uses as much as digits as its factorization.

140273280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 140273280 is about 11843.7021239138. The cubic root of 140273280 is about 519.5870488730.

The spelling of 140273280 in words is "one hundred forty million, two hundred seventy-three thousand, two hundred eighty".