140408887 has 12 divisors (see below), whose sum is σ = 145517688. Its totient is φ = 135464000.

The previous prime is 140408861. The next prime is 140408897. The reversal of 140408887 is 788804041.

It is not a de Polignac number, because 140408887 - 2¹¹ = 140406839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140408837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169368 + ... + 170194.

It is an arithmetic number, because the mean of its divisors is an integer number (12126474).

Almost surely, 2^140408887 is an apocalyptic number.

140408887 is a deficient number, since it is larger than the sum of its proper divisors (5108801).

140408887 is an equidigital number, since it uses as much as digits as its factorization.

140408887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 40.

The square root of 140408887 is about 11849.4255978929. The cubic root of 140408887 is about 519.7544291654.

The spelling of 140408887 in words is "one hundred forty million, four hundred eight thousand, eight hundred eighty-seven".