140312224 has 48 divisors (see below), whose sum is σ = 298680480. Its totient is φ = 64500480.

The previous prime is 140312219. The next prime is 140312281. The reversal of 140312224 is 422213041.

140312224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137187 + ... + 138205.

It is an arithmetic number, because the mean of its divisors is an integer number (6222510).

Almost surely, 2^140312224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140312224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149340240).

140312224 is an abundant number, since it is smaller than the sum of its proper divisors (158368256).

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

140312224 is a wasteful number, since it uses less digits than its factorization.

140312224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373 (or 1365 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 140312224 is about 11845.3460903428. The cubic root of 140312224 is about 519.6351286539.

Adding to 140312224 its reverse (422213041), we get a palindrome (562525265).

The spelling of 140312224 in words is "one hundred forty million, three hundred twelve thousand, two hundred twenty-four".