940227809 has 16 divisors (see below), whose sum is σ = 996179712. Its totient is φ = 886370688.

The previous prime is 940227803. The next prime is 940227851. The reversal of 940227809 is 908722049.

It is a cyclic number.

It is not a de Polignac number, because 940227809 - 2²⁰ = 939179233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (940227803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144347 + ... + 150719.

It is an arithmetic number, because the mean of its divisors is an integer number (62261232).

Almost surely, 2^940227809 is an apocalyptic number.

It is an amenable number.

940227809 is a deficient number, since it is larger than the sum of its proper divisors (55951903).

940227809 is a wasteful number, since it uses less digits than its factorization.

940227809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6536.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 940227809 is about 30663.1343635969. The cubic root of 940227809 is about 979.6652365548.

The spelling of 940227809 in words is "nine hundred forty million, two hundred twenty-seven thousand, eight hundred nine".