140310720 has 336 divisors, whose sum is σ = 543958272. Its totient is φ = 32901120.

The previous prime is 140310713. The next prime is 140310803. The reversal of 140310720 is 27013041.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 140310693 and 140310702.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1362189 + ... + 1362291.

Almost surely, 2^140310720 is an apocalyptic number.

140310720 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 140310720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271979136).

140310720 is an abundant number, since it is smaller than the sum of its proper divisors (403647552).

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

140310720 is a wasteful number, since it uses less digits than its factorization.

140310720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 140310720 is about 11845.2826053244. The cubic root of 140310720 is about 519.6332719993.

Adding to 140310720 its reverse (27013041), we get a palindrome (167323761).

The spelling of 140310720 in words is "one hundred forty million, three hundred ten thousand, seven hundred twenty".