72140010 has 64 divisors (see below), whose sum is σ = 188324352. Its totient is φ = 17611776.

The previous prime is 72140009. The next prime is 72140053. The reversal of 72140010 is 1004127.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16959 + ... + 20781.

It is an arithmetic number, because the mean of its divisors is an integer number (2942568).

Almost surely, 2^72140010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72140010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94162176).

72140010 is an abundant number, since it is smaller than the sum of its proper divisors (116184342).

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

72140010 is a wasteful number, since it uses less digits than its factorization.

72140010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3887.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 72140010 is about 8493.5275357180. The cubic root of 72140010 is about 416.2862497626.

Adding to 72140010 its reverse (1004127), we get a palindrome (73144137).

The spelling of 72140010 in words is "seventy-two million, one hundred forty thousand, ten".