428294073 has 16 divisors (see below), whose sum is σ = 608371776. Its totient is φ = 267079680.

The previous prime is 428294071. The next prime is 428294089. The reversal of 428294073 is 370492824.

It is not a de Polignac number, because 428294073 - 2¹ = 428294071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428294071) 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, 17448 + ... + 34073.

It is an arithmetic number, because the mean of its divisors is an integer number (38023236).

Almost surely, 2^428294073 is an apocalyptic number.

It is an amenable number.

428294073 is a deficient number, since it is larger than the sum of its proper divisors (180077703).

428294073 is a wasteful number, since it uses less digits than its factorization.

428294073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51704.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 428294073 is about 20695.2669226565. The cubic root of 428294073 is about 753.7847637352.

The spelling of 428294073 in words is "four hundred twenty-eight million, two hundred ninety-four thousand, seventy-three".