140322240 has 224 divisors, whose sum is σ = 502920000. Its totient is φ = 36827136.

The previous prime is 140322191. The next prime is 140322253. The reversal of 140322240 is 42223041.

140322240 is a `hidden beast` number, since 1 + 403 + 22 + 240 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 941686 + ... + 941834.

Almost surely, 2^140322240 is an apocalyptic number.

140322240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140322240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251460000).

140322240 is an abundant number, since it is smaller than the sum of its proper divisors (362597760).

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

140322240 is a wasteful number, since it uses less digits than its factorization.

140322240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 140322240 is about 11845.7688648732. The cubic root of 140322240 is about 519.6474928454.

Adding to 140322240 its reverse (42223041), we get a palindrome (182545281).

The spelling of 140322240 in words is "one hundred forty million, three hundred twenty-two thousand, two hundred forty".