140630226 has 64 divisors (see below), whose sum is σ = 314136576. Its totient is φ = 41616000.

The previous prime is 140630221. The next prime is 140630261. The reversal of 140630226 is 622036041.

140630226 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×140630226² = 39553720929622152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140630196 and 140630205.

It is not an unprimeable number, because it can be changed into a prime (140630221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 931251 + ... + 931401.

It is an arithmetic number, because the mean of its divisors is an integer number (4908384).

Almost surely, 2^140630226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140630226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157068288).

140630226 is an abundant number, since it is smaller than the sum of its proper divisors (173506350).

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

140630226 is a wasteful number, since it uses less digits than its factorization.

140630226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 140630226 is about 11858.7615710916. The cubic root of 140630226 is about 520.0273974717.

Adding to 140630226 its reverse (622036041), we get a palindrome (762666267).

The spelling of 140630226 in words is "one hundred forty million, six hundred thirty thousand, two hundred twenty-six".