140928720 has 80 divisors (see below), whose sum is σ = 441197952. Its totient is φ = 37209600.

The previous prime is 140928713. The next prime is 140928761. The reversal of 140928720 is 27829041.

It is a happy number.

140928720 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

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, 21870 + ... + 27570.

Almost surely, 2^140928720 is an apocalyptic number.

140928720 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 140928720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220598976).

140928720 is an abundant number, since it is smaller than the sum of its proper divisors (300269232).

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

140928720 is a wasteful number, since it uses less digits than its factorization.

140928720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5820 (or 5814 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 140928720 is about 11871.3402781657. The cubic root of 140928720 is about 520.3950646692.

The spelling of 140928720 in words is "one hundred forty million, nine hundred twenty-eight thousand, seven hundred twenty".