72049215 has 32 divisors (see below), whose sum is σ = 132111360. Its totient is φ = 32845824.

The previous prime is 72049189. The next prime is 72049223. The reversal of 72049215 is 51294027.

It is not a de Polignac number, because 72049215 - 2⁵ = 72049183 is a prime.

It is a congruent number.

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, 50431 + ... + 51839.

It is an arithmetic number, because the mean of its divisors is an integer number (4128480).

Almost surely, 2^72049215 is an apocalyptic number.

72049215 is a deficient number, since it is larger than the sum of its proper divisors (60062145).

72049215 is a wasteful number, since it uses less digits than its factorization.

72049215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 72049215 is about 8488.1809005228. The cubic root of 72049215 is about 416.1115312856. Note that the first 3 decimals are identical.

The spelling of 72049215 in words is "seventy-two million, forty-nine thousand, two hundred fifteen".