140438386 has 24 divisors (see below), whose sum is σ = 242553744. Its totient is φ = 60472440.

The previous prime is 140438381. The next prime is 140438399. The reversal of 140438386 is 683834041.

It is not an unprimeable number, because it can be changed into a prime (140438381) 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, 900 + ... + 16783.

It is an arithmetic number, because the mean of its divisors is an integer number (10106406).

Almost surely, 2^140438386 is an apocalyptic number.

140438386 is a deficient number, since it is larger than the sum of its proper divisors (102115358).

140438386 is a wasteful number, since it uses less digits than its factorization.

140438386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17734 (or 17715 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 140438386 is about 11850.6702764021. The cubic root of 140438386 is about 519.7908256324.

The spelling of 140438386 in words is "one hundred forty million, four hundred thirty-eight thousand, three hundred eighty-six".