140389590 has 32 divisors (see below), whose sum is σ = 367566336. Its totient is φ = 34033760.

The previous prime is 140389547. The next prime is 140389637. The reversal of 140389590 is 95983041.

140389590 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212382 + ... + 213041.

It is an arithmetic number, because the mean of its divisors is an integer number (11486448).

Almost surely, 2^140389590 is an apocalyptic number.

140389590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140389590 is an abundant number, since it is smaller than the sum of its proper divisors (227176746).

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

140389590 is a wasteful number, since it uses less digits than its factorization.

140389590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425444.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 140389590 is about 11848.6113110356. The cubic root of 140389590 is about 519.7306173755.

The spelling of 140389590 in words is "one hundred forty million, three hundred eighty-nine thousand, five hundred ninety".