428669045 has 16 divisors (see below), whose sum is σ = 590882688. Its totient is φ = 292447680.

The previous prime is 428669041. The next prime is 428669057. The reversal of 428669045 is 540966824.

It is not a de Polignac number, because 428669045 - 2² = 428669041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 428668987 and 428669005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428669041) 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, 24191 + ... + 37980.

It is an arithmetic number, because the mean of its divisors is an integer number (36930168).

Almost surely, 2^428669045 is an apocalyptic number.

It is an amenable number.

428669045 is a deficient number, since it is larger than the sum of its proper divisors (162213643).

428669045 is a wasteful number, since it uses less digits than its factorization.

428669045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62380.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 428669045 is about 20704.3243067722. The cubic root of 428669045 is about 754.0046794054.

The spelling of 428669045 in words is "four hundred twenty-eight million, six hundred sixty-nine thousand, forty-five".