140434216 has 64 divisors (see below), whose sum is σ = 299819520. Its totient is φ = 61205760.

The previous prime is 140434213. The next prime is 140434223. The reversal of 140434216 is 612434041.

140434216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (140434213) 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, 138126 + ... + 139138.

It is an arithmetic number, because the mean of its divisors is an integer number (4684680).

Almost surely, 2^140434216 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 140434216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149909760).

140434216 is an abundant number, since it is smaller than the sum of its proper divisors (159385304).

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

140434216 is a wasteful number, since it uses less digits than its factorization.

140434216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106 (or 1102 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 140434216 is about 11850.4943356807. The cubic root of 140434216 is about 519.7856809108.

Adding to 140434216 its reverse (612434041), we get a palindrome (752868257).

The spelling of 140434216 in words is "one hundred forty million, four hundred thirty-four thousand, two hundred sixteen".