140684810 has 16 divisors (see below), whose sum is σ = 289408896. Its totient is φ = 48234768.

The previous prime is 140684779. The next prime is 140684837. The reversal of 140684810 is 18486041.

It is a super-2 number, since 2×140684810² = 39584431529472200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1004822 + ... + 1004961.

It is an arithmetic number, because the mean of its divisors is an integer number (18088056).

Almost surely, 2^140684810 is an apocalyptic number.

140684810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140684810 is an abundant number, since it is smaller than the sum of its proper divisors (148724086).

140684810 is a wasteful number, since it uses less digits than its factorization.

140684810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009797.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 140684810 is about 11861.0627685718. The cubic root of 140684810 is about 520.0946696473.

The spelling of 140684810 in words is "one hundred forty million, six hundred eighty-four thousand, eight hundred ten".