305428051 has 4 divisors (see below), whose sum is σ = 305486104. Its totient is φ = 305370000.

The previous prime is 305428049. The next prime is 305428061. The reversal of 305428051 is 150824503.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150824503 = 9811 ⋅15373.

It is a cyclic number.

It is not a de Polignac number, because 305428051 - 2¹ = 305428049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (305428061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20250 + ... + 31951.

It is an arithmetic number, because the mean of its divisors is an integer number (76371526).

Almost surely, 2^305428051 is an apocalyptic number.

305428051 is a deficient number, since it is larger than the sum of its proper divisors (58053).

305428051 is an equidigital number, since it uses as much as digits as its factorization.

305428051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58052.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 305428051 is about 17476.4999642377. The cubic root of 305428051 is about 673.4463037639.

The spelling of 305428051 in words is "three hundred five million, four hundred twenty-eight thousand, fifty-one".