29280045 has 32 divisors (see below), whose sum is σ = 50042880. Its totient is φ = 14575680.

The previous prime is 29280037. The next prime is 29280047. The reversal of 29280045 is 54008292.

It is not a de Polignac number, because 29280045 - 2³ = 29280037 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 29279994 and 29280021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29280047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19512 + ... + 20958.

It is an arithmetic number, because the mean of its divisors is an integer number (1563840).

Almost surely, 2^29280045 is an apocalyptic number.

It is an amenable number.

29280045 is a deficient number, since it is larger than the sum of its proper divisors (20762835).

29280045 is a wasteful number, since it uses less digits than its factorization.

29280045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 29280045 is about 5411.1038615055. The cubic root of 29280045 is about 308.2174667317.

The spelling of 29280045 in words is "twenty-nine million, two hundred eighty thousand, forty-five".