305280046 has 4 divisors (see below), whose sum is σ = 457920072. Its totient is φ = 152640022.

The previous prime is 305280023. The next prime is 305280061. The reversal of 305280046 is 640082503.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 640082503 = 937 ⋅683119.

It is a junction number, because it is equal to n+sod(n) for n = 305279996 and 305280023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76320010 + ... + 76320013.

It is an arithmetic number, because the mean of its divisors is an integer number (114480018).

Almost surely, 2^305280046 is an apocalyptic number.

305280046 is a deficient number, since it is larger than the sum of its proper divisors (152640026).

305280046 is a wasteful number, since it uses less digits than its factorization.

305280046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152640025.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 305280046 is about 17472.2650506453. The cubic root of 305280046 is about 673.3375061555.

The spelling of 305280046 in words is "three hundred five million, two hundred eighty thousand, forty-six".