140350386 has 64 divisors (see below), whose sum is σ = 316265472. Its totient is φ = 41160000.

The previous prime is 140350349. The next prime is 140350391. The reversal of 140350386 is 683053041.

140350386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 285601 + ... + 286091.

It is an arithmetic number, because the mean of its divisors is an integer number (4941648).

Almost surely, 2^140350386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140350386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158132736).

140350386 is an abundant number, since it is smaller than the sum of its proper divisors (175915086).

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

140350386 is a wasteful number, since it uses less digits than its factorization.

140350386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 140350386 is about 11846.9568244339. The cubic root of 140350386 is about 519.6822343578.

The spelling of 140350386 in words is "one hundred forty million, three hundred fifty thousand, three hundred eighty-six".