405201045 has 16 divisors (see below), whose sum is σ = 649664640. Its totient is φ = 215659584.

The previous prime is 405201037. The next prime is 405201077. The reversal of 405201045 is 540102504.

It is not a de Polignac number, because 405201045 - 2³ = 405201037 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20430 + ... + 35039.

It is an arithmetic number, because the mean of its divisors is an integer number (40604040).

Almost surely, 2^405201045 is an apocalyptic number.

It is an amenable number.

405201045 is a deficient number, since it is larger than the sum of its proper divisors (244463595).

405201045 is a wasteful number, since it uses less digits than its factorization.

405201045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55964.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 405201045 is about 20129.6061809465. The cubic root of 405201045 is about 739.9860266414.

Adding to 405201045 its reverse (540102504), we get a palindrome (945303549).

The spelling of 405201045 in words is "four hundred five million, two hundred one thousand, forty-five".