428732774 has 16 divisors (see below), whose sum is σ = 648329616. Its totient is φ = 212628000.

The previous prime is 428732771. The next prime is 428732819. The reversal of 428732774 is 477237824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428732771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294749 + ... + 296199.

It is an arithmetic number, because the mean of its divisors is an integer number (40520601).

Almost surely, 2^428732774 is an apocalyptic number.

428732774 is a deficient number, since it is larger than the sum of its proper divisors (219596842).

428732774 is a wasteful number, since it uses less digits than its factorization.

428732774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551.

The product of its digits is 526848, while the sum is 44.

The square root of 428732774 is about 20705.8632758936. The cubic root of 428732774 is about 754.0420427931.

The spelling of 428732774 in words is "four hundred twenty-eight million, seven hundred thirty-two thousand, seven hundred seventy-four".