920428 has 6 divisors (see below), whose sum is σ = 1610756. Its totient is φ = 460212.

The previous prime is 920419. The next prime is 920441. The reversal of 920428 is 824029.

920428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

920428 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115050 + ... + 115057.

2⁹²⁰⁴²⁸ is an apocalyptic number.

It is an amenable number.

920428 is a deficient number, since it is larger than the sum of its proper divisors (690328).

920428 is a wasteful number, since it uses less digits than its factorization.

920428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230111 (or 230109 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 920428 is about 959.3893891429. The cubic root of 920428 is about 97.2739624582.

The spelling of 920428 in words is "nine hundred twenty thousand, four hundred twenty-eight".