39798428 has 12 divisors (see below), whose sum is σ = 73744272. Its totient is φ = 18728640.

The previous prime is 39798427. The next prime is 39798431. The reversal of 39798428 is 82489793.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39798427) 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, 292568 + ... + 292703.

It is an arithmetic number, because the mean of its divisors is an integer number (6145356).

Almost surely, 2^39798428 is an apocalyptic number.

It is an amenable number.

39798428 is a deficient number, since it is larger than the sum of its proper divisors (33945844).

39798428 is a wasteful number, since it uses less digits than its factorization.

39798428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585292 (or 585290 counting only the distinct ones).

The product of its digits is 870912, while the sum is 50.

The square root of 39798428 is about 6308.5995276289. The cubic root of 39798428 is about 341.4197495263.

The spelling of 39798428 in words is "thirty-nine million, seven hundred ninety-eight thousand, four hundred twenty-eight".