140500830 has 32 divisors (see below), whose sum is σ = 342921600. Its totient is φ = 36831392.

The previous prime is 140500799. The next prime is 140500847. The reversal of 140500830 is 38005041.

It is a junction number, because it is equal to n+sod(n) for n = 140500797 and 140500806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37920 + ... + 41459.

It is an arithmetic number, because the mean of its divisors is an integer number (10716300).

Almost surely, 2^140500830 is an apocalyptic number.

140500830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140500830 is an abundant number, since it is smaller than the sum of its proper divisors (202420770).

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

140500830 is a wasteful number, since it uses less digits than its factorization.

140500830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79448.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 140500830 is about 11853.3046025149. The cubic root of 140500830 is about 519.8678535016.

Adding to 140500830 its reverse (38005041), we get a palindrome (178505871).

The spelling of 140500830 in words is "one hundred forty million, five hundred thousand, eight hundred thirty".