39420227 has 16 divisors (see below), whose sum is σ = 49565184. Its totient is φ = 30709800.

The previous prime is 39420223. The next prime is 39420233. The reversal of 39420227 is 72202493.

It is a happy number.

It is not a de Polignac number, because 39420227 - 2² = 39420223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39420227.

It is not an unprimeable number, because it can be changed into a prime (39420221) 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, 7202 + ... + 11432.

It is an arithmetic number, because the mean of its divisors is an integer number (3097824).

Almost surely, 2^39420227 is an apocalyptic number.

39420227 is a deficient number, since it is larger than the sum of its proper divisors (10144957).

39420227 is an equidigital number, since it uses as much as digits as its factorization.

39420227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4271 (or 4249 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 39420227 is about 6278.5529383768. The cubic root of 39420227 is about 340.3348114814.

The spelling of 39420227 in words is "thirty-nine million, four hundred twenty thousand, two hundred twenty-seven".