140873730 has 64 divisors (see below), whose sum is σ = 359624448. Its totient is φ = 35194880.

The previous prime is 140873729. The next prime is 140873737. The reversal of 140873730 is 37378041.

It is a super-2 number, since 2×140873730² = 39690815608225800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140873691 and 140873700.

It is not an unprimeable number, because it can be changed into a prime (140873737) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142819 + ... + 143801.

It is an arithmetic number, because the mean of its divisors is an integer number (5619132).

Almost surely, 2^140873730 is an apocalyptic number.

140873730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140873730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179812224).

140873730 is an abundant number, since it is smaller than the sum of its proper divisors (218750718).

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

140873730 is a wasteful number, since it uses less digits than its factorization.

140873730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 140873730 is about 11869.0239699817. The cubic root of 140873730 is about 520.3273702881.

The spelling of 140873730 in words is "one hundred forty million, eight hundred seventy-three thousand, seven hundred thirty".