28945234 has 8 divisors (see below), whose sum is σ = 43515900. Its totient is φ = 14439936.

The previous prime is 28945199. The next prime is 28945249. The reversal of 28945234 is 43254982.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28037025 + 908209 = 5295^2 + 953^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 28945193 and 28945202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15219 + ... + 17014.

Almost surely, 2^28945234 is an apocalyptic number.

28945234 is a deficient number, since it is larger than the sum of its proper divisors (14570666).

28945234 is a wasteful number, since it uses less digits than its factorization.

28945234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32684.

The product of its digits is 69120, while the sum is 37.

The square root of 28945234 is about 5380.0775087354. The cubic root of 28945234 is about 307.0381601177.

It can be divided in two parts, 2894 and 5234, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 28945234 in words is "twenty-eight million, nine hundred forty-five thousand, two hundred thirty-four".