10420428 has 12 divisors (see below), whose sum is σ = 24314360. Its totient is φ = 3473472.

The previous prime is 10420411. The next prime is 10420429. The reversal of 10420428 is 82402401.

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 (10420429) 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, 434173 + ... + 434196.

Almost surely, 2^10420428 is an apocalyptic number.

It is an amenable number.

10420428 is an abundant number, since it is smaller than the sum of its proper divisors (13893932).

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

10420428 is a wasteful number, since it uses less digits than its factorization.

10420428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868376 (or 868374 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 10420428 is about 3228.0687725016. The cubic root of 10420428 is about 218.4213996394.

Adding to 10420428 its reverse (82402401), we get a palindrome (92822829).

The spelling of 10420428 in words is "ten million, four hundred twenty thousand, four hundred twenty-eight".