10139428 has 12 divisors (see below), whose sum is σ = 19109020. Its totient is φ = 4679712.

The previous prime is 10139419. The next prime is 10139431. The reversal of 10139428 is 82493101.

It is a happy number.

10139428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 702244 + 9437184 = 838^2 + 3072^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10139396 and 10139405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97443 + ... + 97546.

Almost surely, 2^10139428 is an apocalyptic number.

It is an amenable number.

10139428 is a deficient number, since it is larger than the sum of its proper divisors (8969592).

10139428 is a wasteful number, since it uses less digits than its factorization.

10139428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195006 (or 195004 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 10139428 is about 3184.2468497276. The cubic root of 10139428 is about 216.4401461660.

The spelling of 10139428 in words is "ten million, one hundred thirty-nine thousand, four hundred twenty-eight".