140226240 has 336 divisors, whose sum is σ = 567074304. Its totient is φ = 29030400.

The previous prime is 140226227. The next prime is 140226257. The reversal of 140226240 is 42622041.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 517305 + ... + 517575.

Almost surely, 2^140226240 is an apocalyptic number.

140226240 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 140226240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283537152).

140226240 is an abundant number, since it is smaller than the sum of its proper divisors (426848064).

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

140226240 is a wasteful number, since it uses less digits than its factorization.

140226240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 140226240 is about 11841.7160918509. The cubic root of 140226240 is about 519.5289620029.

Adding to 140226240 its reverse (42622041), we get a palindrome (182848281).

The spelling of 140226240 in words is "one hundred forty million, two hundred twenty-six thousand, two hundred forty".