140021882 has 32 divisors (see below), whose sum is σ = 282006144. Its totient is φ = 50356800.

The previous prime is 140021881. The next prime is 140021897. The reversal of 140021882 is 288120041.

It is a super-2 number, since 2×140021882² = 39212254877643848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (140021881) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 32969 + ... + 36972.

It is an arithmetic number, because the mean of its divisors is an integer number (8812692).

Almost surely, 2^140021882 is an apocalyptic number.

140021882 is an abundant number, since it is smaller than the sum of its proper divisors (141984262).

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

140021882 is a wasteful number, since it uses less digits than its factorization.

140021882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69974.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 140021882 is about 11833.0842133402. The cubic root of 140021882 is about 519.2764616700.

The spelling of 140021882 in words is "one hundred forty million, twenty-one thousand, eight hundred eighty-two".