428964770 has 32 divisors (see below), whose sum is σ = 849235968. Its totient is φ = 155014848.

The previous prime is 428964769. The next prime is 428964779. The reversal of 428964770 is 77469824.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (428964779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28994 + ... + 41213.

It is an arithmetic number, because the mean of its divisors is an integer number (26538624).

Almost surely, 2^428964770 is an apocalyptic number.

428964770 is a deficient number, since it is larger than the sum of its proper divisors (420271198).

428964770 is a wasteful number, since it uses less digits than its factorization.

428964770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70274.

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 428964770 is about 20711.4646995330. The cubic root of 428964770 is about 754.1780274159.

The spelling of 428964770 in words is "four hundred twenty-eight million, nine hundred sixty-four thousand, seven hundred seventy".