140067224 has 64 divisors (see below), whose sum is σ = 295293600. Its totient is φ = 61747200.

The previous prime is 140067143. The next prime is 140067227. The reversal of 140067224 is 422760041.

It is a Cunningham number, because it is equal to 11835²-1.

It is a junction number, because it is equal to n+sod(n) for n = 140067193 and 140067202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140067227) 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, 520562 + ... + 520830.

Almost surely, 2^140067224 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 140067224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147646800).

140067224 is an abundant number, since it is smaller than the sum of its proper divisors (155226376).

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

140067224 is a wasteful number, since it uses less digits than its factorization.

140067224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 140067224 is about 11834.9999577524. Note that the first 4 decimals coincide. The cubic root of 140067224 is about 519.3325064634.

The spelling of 140067224 in words is "one hundred forty million, sixty-seven thousand, two hundred twenty-four".