40515227 has 4 divisors (see below), whose sum is σ = 41085936. Its totient is φ = 39944520.

The previous prime is 40515193. The next prime is 40515247. The reversal of 40515227 is 72251504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40515227 - 2¹⁰ = 40514203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40515196 and 40515205.

It is not an unprimeable number, because it can be changed into a prime (40515247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285248 + ... + 285389.

It is an arithmetic number, because the mean of its divisors is an integer number (10271484).

Almost surely, 2^40515227 is an apocalyptic number.

40515227 is a deficient number, since it is larger than the sum of its proper divisors (570709).

40515227 is an equidigital number, since it uses as much as digits as its factorization.

40515227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570708.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 40515227 is about 6365.1572643573. The cubic root of 40515227 is about 343.4573058024.

The spelling of 40515227 in words is "forty million, five hundred fifteen thousand, two hundred twenty-seven".