10387428 has 12 divisors (see below), whose sum is σ = 24237360. Its totient is φ = 3462472.

The previous prime is 10387427. The next prime is 10387463. The reversal of 10387428 is 82478301.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (10387427) 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, 432798 + ... + 432821.

It is an arithmetic number, because the mean of its divisors is an integer number (2019780).

Almost surely, 2^10387428 is an apocalyptic number.

It is an amenable number.

10387428 is an abundant number, since it is smaller than the sum of its proper divisors (13849932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10387428 is a wasteful number, since it uses less digits than its factorization.

10387428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865626 (or 865624 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 10387428 is about 3222.9533040365. The cubic root of 10387428 is about 218.1905860744.

The spelling of 10387428 in words is "ten million, three hundred eighty-seven thousand, four hundred twenty-eight".