40227209 has 8 divisors (see below), whose sum is σ = 44273952. Its totient is φ = 36245440.

The previous prime is 40227197. The next prime is 40227211. The reversal of 40227209 is 90272204.

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

It is a de Polignac number, because none of the positive numbers 2^k-40227209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40227409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14939 + ... + 17424.

It is an arithmetic number, because the mean of its divisors is an integer number (5534244).

Almost surely, 2^40227209 is an apocalyptic number.

It is an amenable number.

40227209 is a deficient number, since it is larger than the sum of its proper divisors (4046743).

40227209 is a wasteful number, since it uses less digits than its factorization.

40227209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32487.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 40227209 is about 6342.4923334601. The cubic root of 40227209 is about 342.6415036801.

The spelling of 40227209 in words is "forty million, two hundred twenty-seven thousand, two hundred nine".