10428778 has 8 divisors (see below), whose sum is σ = 15664068. Its totient is φ = 5207424.

The previous prime is 10428731. The next prime is 10428787. The reversal of 10428778 is 87782401.

10428778 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 9815689 + 613089 = 3133^2 + 783^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1351 + ... + 4762.

Almost surely, 2^10428778 is an apocalyptic number.

10428778 is a deficient number, since it is larger than the sum of its proper divisors (5235290).

10428778 is an equidigital number, since it uses as much as digits as its factorization.

10428778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6968.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 10428778 is about 3229.3618564664. The cubic root of 10428778 is about 218.4797251949.

It can be divided in two parts, 104 and 28778, that added together give a palindrome (28882).

The spelling of 10428778 in words is "ten million, four hundred twenty-eight thousand, seven hundred seventy-eight".