428662145 has 16 divisors (see below), whose sum is σ = 531505152. Its totient is φ = 331705920.

The previous prime is 428662061. The next prime is 428662151. The reversal of 428662145 is 541266824.

It is not a de Polignac number, because 428662145 - 2¹⁴ = 428645761 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 428662099 and 428662108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7424 + ... + 30206.

It is an arithmetic number, because the mean of its divisors is an integer number (33219072).

Almost surely, 2^428662145 is an apocalyptic number.

It is an amenable number.

428662145 is a deficient number, since it is larger than the sum of its proper divisors (102843007).

428662145 is a wasteful number, since it uses less digits than its factorization.

428662145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22912.

The product of its digits is 92160, while the sum is 38.

The square root of 428662145 is about 20704.1576742450. The cubic root of 428662145 is about 754.0006338133. Note that the first 3 decimals are identical.

The spelling of 428662145 in words is "four hundred twenty-eight million, six hundred sixty-two thousand, one hundred forty-five".