40227839 has 4 divisors (see below), whose sum is σ = 40240824. Its totient is φ = 40214856.

The previous prime is 40227823. The next prime is 40227841. The reversal of 40227839 is 93872204.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40227839 - 2⁴ = 40227823 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 40227799 and 40227808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40220839) 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, 1169 + ... + 9045.

It is an arithmetic number, because the mean of its divisors is an integer number (10060206).

Almost surely, 2^40227839 is an apocalyptic number.

40227839 is a deficient number, since it is larger than the sum of its proper divisors (12985).

40227839 is an equidigital number, since it uses as much as digits as its factorization.

40227839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12984.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 40227839 is about 6342.5419982843. The cubic root of 40227839 is about 342.6432923784.

The spelling of 40227839 in words is "forty million, two hundred twenty-seven thousand, eight hundred thirty-nine".