140628320 has 96 divisors (see below), whose sum is σ = 382003776. Its totient is φ = 47923200.

The previous prime is 140628289. The next prime is 140628331. The reversal of 140628320 is 23826041.

It is a super-3 number, since 3×140628320³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140628320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269660 + ... + 270180.

It is an arithmetic number, because the mean of its divisors is an integer number (3979206).

Almost surely, 2^140628320 is an apocalyptic number.

140628320 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 140628320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191001888).

140628320 is an abundant number, since it is smaller than the sum of its proper divisors (241375456).

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

140628320 is a wasteful number, since it uses less digits than its factorization.

140628320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784 (or 776 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 140628320 is about 11858.6812082963. The cubic root of 140628320 is about 520.0250481031.

The spelling of 140628320 in words is "one hundred forty million, six hundred twenty-eight thousand, three hundred twenty".