140240030 has 32 divisors (see below), whose sum is σ = 288990720. Its totient is φ = 47999520.

The previous prime is 140240029. The next prime is 140240033. The reversal of 140240030 is 30042041.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 140239987 and 140240014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140240033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50375 + ... + 53085.

It is an arithmetic number, because the mean of its divisors is an integer number (9030960).

Almost surely, 2^140240030 is an apocalyptic number.

140240030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140240030 is an abundant number, since it is smaller than the sum of its proper divisors (148750690).

140240030 is a wasteful number, since it uses less digits than its factorization.

140240030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3464.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 140240030 is about 11842.2983411161. The cubic root of 140240030 is about 519.5459917912.

Adding to 140240030 its reverse (30042041), we get a palindrome (170282071).

The spelling of 140240030 in words is "one hundred forty million, two hundred forty thousand, thirty".