140389386 has 8 divisors (see below), whose sum is σ = 280778784. Its totient is φ = 46796460.

The previous prime is 140389373. The next prime is 140389411. The reversal of 140389386 is 683983041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

140389386 is an admirable number.

It is a super-3 number, since 3×140389386³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11699110 + ... + 11699121.

It is an arithmetic number, because the mean of its divisors is an integer number (35097348).

Almost surely, 2^140389386 is an apocalyptic number.

140389386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

140389386 is a wasteful number, since it uses less digits than its factorization.

140389386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23398236.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 140389386 is about 11848.6027024287. The cubic root of 140389386 is about 519.7303656354.

The spelling of 140389386 in words is "one hundred forty million, three hundred eighty-nine thousand, three hundred eighty-six".