72110140 has 48 divisors (see below), whose sum is σ = 156119040. Its totient is φ = 27961920.

The previous prime is 72110131. The next prime is 72110147. The reversal of 72110140 is 4101127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72110147) 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, 164041 + ... + 164479.

It is an arithmetic number, because the mean of its divisors is an integer number (3252480).

Almost surely, 2^72110140 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 72110140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78059520).

72110140 is an abundant number, since it is smaller than the sum of its proper divisors (84008900).

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

72110140 is a wasteful number, since it uses less digits than its factorization.

72110140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 72110140 is about 8491.7689558772. The cubic root of 72110140 is about 416.2287865654.

Adding to 72110140 its reverse (4101127), we get a palindrome (76211267).

The spelling of 72110140 in words is "seventy-two million, one hundred ten thousand, one hundred forty".