140773830 has 128 divisors (see below), whose sum is σ = 369515520. Its totient is φ = 34245120.

The previous prime is 140773817. The next prime is 140773837. The reversal of 140773830 is 38377041.

It is a junction number, because it is equal to n+sod(n) for n = 140773791 and 140773800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140773837) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1982695 + ... + 1982765.

It is an arithmetic number, because the mean of its divisors is an integer number (2886840).

Almost surely, 2^140773830 is an apocalyptic number.

140773830 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 140773830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184757760).

140773830 is an abundant number, since it is smaller than the sum of its proper divisors (228741690).

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

140773830 is a wasteful number, since it uses less digits than its factorization.

140773830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206.

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

The square root of 140773830 is about 11864.8147899577. The cubic root of 140773830 is about 520.2043452300.

The spelling of 140773830 in words is "one hundred forty million, seven hundred seventy-three thousand, eight hundred thirty".