28070045 has 8 divisors (see below), whose sum is σ = 34401024. Its totient is φ = 21978064.

The previous prime is 28069997. The next prime is 28070047. The reversal of 28070045 is 54007082.

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

It is a cyclic number.

It is not a de Polignac number, because 28070045 - 2⁶ = 28069981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28069996 and 28070023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28070047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59489 + ... + 59958.

It is an arithmetic number, because the mean of its divisors is an integer number (4300128).

Almost surely, 2^28070045 is an apocalyptic number.

It is an amenable number.

28070045 is a deficient number, since it is larger than the sum of its proper divisors (6330979).

28070045 is a wasteful number, since it uses less digits than its factorization.

28070045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119499.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 28070045 is about 5298.1171183733. The cubic root of 28070045 is about 303.9118980905.

The spelling of 28070045 in words is "twenty-eight million, seventy thousand, forty-five".