1045432409 has 16 divisors (see below), whose sum is σ = 1250795520. Its totient is φ = 854327760.

The previous prime is 1045432337. The next prime is 1045432411. The reversal of 1045432409 is 9042345401.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1045432409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045432429) 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, 39632 + ... + 60510.

It is an arithmetic number, because the mean of its divisors is an integer number (78174720).

Almost surely, 2^1045432409 is an apocalyptic number.

It is an amenable number.

1045432409 is a deficient number, since it is larger than the sum of its proper divisors (205363111).

1045432409 is a wasteful number, since it uses less digits than its factorization.

1045432409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21220.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1045432409 is about 32333.1472176774. The cubic root of 1045432409 is about 1014.9204104967.

The spelling of 1045432409 in words is "one billion, forty-five million, four hundred thirty-two thousand, four hundred nine".