140839230 has 64 divisors (see below), whose sum is σ = 394214400. Its totient is φ = 32189472.

The previous prime is 140839183. The next prime is 140839249. The reversal of 140839230 is 32938041.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 31 ways as a sum of consecutive naturals, for example, 3447 + ... + 17133.

It is an arithmetic number, because the mean of its divisors is an integer number (6159600).

Almost surely, 2^140839230 is an apocalyptic number.

140839230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140839230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197107200).

140839230 is an abundant number, since it is smaller than the sum of its proper divisors (253375170).

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

140839230 is a wasteful number, since it uses less digits than its factorization.

140839230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13718 (or 13704 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 140839230 is about 11867.5705180125. The cubic root of 140839230 is about 520.2848907335.

The spelling of 140839230 in words is "one hundred forty million, eight hundred thirty-nine thousand, two hundred thirty".