72040236 has 24 divisors (see below), whose sum is σ = 168248304. Its totient is φ = 23991360.

The previous prime is 72040219. The next prime is 72040259. The reversal of 72040236 is 63204027.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15906 + ... + 19926.

It is an arithmetic number, because the mean of its divisors is an integer number (7010346).

Almost surely, 2^72040236 is an apocalyptic number.

It is an amenable number.

72040236 is an abundant number, since it is smaller than the sum of its proper divisors (96208068).

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

72040236 is a wasteful number, since it uses less digits than its factorization.

72040236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5521 (or 5519 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 72040236 is about 8487.6519721299. The cubic root of 72040236 is about 416.0942448578.

The spelling of 72040236 in words is "seventy-two million, forty thousand, two hundred thirty-six".