428823770 has 16 divisors (see below), whose sum is σ = 788306688. Its totient is φ = 167879760.

The previous prime is 428823751. The next prime is 428823781. The reversal of 428823770 is 77328824.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455726 + ... + 456665.

It is an arithmetic number, because the mean of its divisors is an integer number (49269168).

Almost surely, 2^428823770 is an apocalyptic number.

428823770 is a deficient number, since it is larger than the sum of its proper divisors (359482918).

428823770 is a wasteful number, since it uses less digits than its factorization.

428823770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912445.

The product of its (nonzero) digits is 150528, while the sum is 41.

The square root of 428823770 is about 20708.0605079278. The cubic root of 428823770 is about 754.0953860099.

The spelling of 428823770 in words is "four hundred twenty-eight million, eight hundred twenty-three thousand, seven hundred seventy".