39406228 has 24 divisors (see below), whose sum is σ = 73058720. Its totient is φ = 18545760.

The previous prime is 39406219. The next prime is 39406229. The reversal of 39406228 is 82260493.

It is a junction number, because it is equal to n+sod(n) for n = 39406193 and 39406202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39406229) 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, 10798 + ... + 13978.

Almost surely, 2^39406228 is an apocalyptic number.

39406228 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

39406228 is a deficient number, since it is larger than the sum of its proper divisors (33652492).

39406228 is a wasteful number, since it uses less digits than its factorization.

39406228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3367 (or 3365 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 39406228 is about 6277.4380124379. The cubic root of 39406228 is about 340.2945198894.

The spelling of 39406228 in words is "thirty-nine million, four hundred six thousand, two hundred twenty-eight".