239216140 has 24 divisors (see below), whose sum is σ = 514608192. Its totient is φ = 93352320.

The previous prime is 239216093. The next prime is 239216147. The reversal of 239216140 is 41612932.

It is a junction number, because it is equal to n+sod(n) for n = 239216099 and 239216108.

It is not an unprimeable number, because it can be changed into a prime (239216147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145044 + ... + 146683.

It is an arithmetic number, because the mean of its divisors is an integer number (21442008).

Almost surely, 2^239216140 is an apocalyptic number.

239216140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

239216140 is an abundant number, since it is smaller than the sum of its proper divisors (275392052).

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

239216140 is a wasteful number, since it uses less digits than its factorization.

239216140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291777 (or 291775 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 239216140 is about 15466.6137211737. The cubic root of 239216140 is about 620.7691979250.

The spelling of 239216140 in words is "two hundred thirty-nine million, two hundred sixteen thousand, one hundred forty".