10400428 has 12 divisors (see below), whose sum is σ = 18228672. Its totient is φ = 5192240.

The previous prime is 10400417. The next prime is 10400431. The reversal of 10400428 is 82400401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1701 + ... + 4867.

It is an arithmetic number, because the mean of its divisors is an integer number (1519056).

Almost surely, 2^10400428 is an apocalyptic number.

It is an amenable number.

10400428 is a deficient number, since it is larger than the sum of its proper divisors (7828244).

10400428 is a wasteful number, since it uses less digits than its factorization.

10400428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3992 (or 3990 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 10400428 is about 3224.9694572197. The cubic root of 10400428 is about 218.2815709055.

Adding to 10400428 its reverse (82400401), we get a palindrome (92800829).

The spelling of 10400428 in words is "ten million, four hundred thousand, four hundred twenty-eight".