72040286 has 8 divisors (see below), whose sum is σ = 113747880. Its totient is φ = 34124328.

The previous prime is 72040279. The next prime is 72040291. The reversal of 72040286 is 68204027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 947861 + ... + 947936.

It is an arithmetic number, because the mean of its divisors is an integer number (14218485).

Almost surely, 2^72040286 is an apocalyptic number.

72040286 is a deficient number, since it is larger than the sum of its proper divisors (41707594).

72040286 is a wasteful number, since it uses less digits than its factorization.

72040286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895818.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 72040286 is about 8487.6549175847. The cubic root of 72040286 is about 416.0943411220.

The spelling of 72040286 in words is "seventy-two million, forty thousand, two hundred eighty-six".