140837928 has 128 divisors (see below), whose sum is σ = 464901120. Its totient is φ = 34421760.

The previous prime is 140837869. The next prime is 140837941. The reversal of 140837928 is 829738041.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 140837928.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29175 + ... + 33657.

It is an arithmetic number, because the mean of its divisors is an integer number (3632040).

Almost surely, 2^140837928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140837928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232450560).

140837928 is an abundant number, since it is smaller than the sum of its proper divisors (324063192).

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

140837928 is a wasteful number, since it uses less digits than its factorization.

140837928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4527 (or 4523 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 140837928 is about 11867.5156625134. The cubic root of 140837928 is about 520.2832874562.

The spelling of 140837928 in words is "one hundred forty million, eight hundred thirty-seven thousand, nine hundred twenty-eight".