28574320346 has 32 divisors (see below), whose sum is σ = 50481785088. Its totient is φ = 11958978240.

The previous prime is 28574320321. The next prime is 28574320349. The reversal of 28574320346 is 64302347582.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28574320297 and 28574320306.

It is not an unprimeable number, because it can be changed into a prime (28574320349) 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, 12290 + ... + 239373.

It is an arithmetic number, because the mean of its divisors is an integer number (1577555784).

Almost surely, 2^28574320346 is an apocalyptic number.

28574320346 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28574320346 is a deficient number, since it is larger than the sum of its proper divisors (21907464742).

28574320346 is a wasteful number, since it uses less digits than its factorization.

28574320346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252086.

The product of its (nonzero) digits is 967680, while the sum is 44.

The spelling of 28574320346 in words is "twenty-eight billion, five hundred seventy-four million, three hundred twenty thousand, three hundred forty-six".