140428888 has 8 divisors (see below), whose sum is σ = 263304180. Its totient is φ = 70214440.

The previous prime is 140428879. The next prime is 140428913. The reversal of 140428888 is 888824041.

It is a happy number.

140428888 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8776798 + ... + 8776813.

Almost surely, 2^140428888 is an apocalyptic number.

It is an amenable number.

140428888 is a deficient number, since it is larger than the sum of its proper divisors (122875292).

140428888 is a wasteful number, since it uses less digits than its factorization.

140428888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17553617 (or 17553613 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 43.

The square root of 140428888 is about 11850.2695327997. The cubic root of 140428888 is about 519.7791073630.

The spelling of 140428888 in words is "one hundred forty million, four hundred twenty-eight thousand, eight hundred eighty-eight".