39228429 has 8 divisors (see below), whose sum is σ = 53162272. Its totient is φ = 25723440.

The previous prime is 39228421. The next prime is 39228439. The reversal of 39228429 is 92482293.

It is a happy number.

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

It is not a de Polignac number, because 39228429 - 2³ = 39228421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39228421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106999 + ... + 107364.

It is an arithmetic number, because the mean of its divisors is an integer number (6645284).

Almost surely, 2^39228429 is an apocalyptic number.

It is an amenable number.

39228429 is a deficient number, since it is larger than the sum of its proper divisors (13933843).

39228429 is a wasteful number, since it uses less digits than its factorization.

39228429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214427.

The product of its digits is 62208, while the sum is 39.

The square root of 39228429 is about 6263.2602532547. The cubic root of 39228429 is about 339.7819507323.

The spelling of 39228429 in words is "thirty-nine million, two hundred twenty-eight thousand, four hundred twenty-nine".