433472399 has 16 divisors (see below), whose sum is σ = 450109440. Its totient is φ = 417212640.

The previous prime is 433472393. The next prime is 433472437. The reversal of 433472399 is 993274334.

It is a Cunningham number, because it is equal to 20820²-1.

It is a cyclic number.

It is not a de Polignac number, because 433472399 - 2²⁸ = 165036943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (433472393) 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, 978272 + ... + 978714.

It is an arithmetic number, because the mean of its divisors is an integer number (28131840).

Almost surely, 2^433472399 is an apocalyptic number.

433472399 is a deficient number, since it is larger than the sum of its proper divisors (16637041).

433472399 is a wasteful number, since it uses less digits than its factorization.

433472399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790.

The product of its digits is 489888, while the sum is 44.

The square root of 433472399 is about 20819.9999759846. Note that the first 4 decimals coincide. The cubic root of 433472399 is about 756.8105016360.

The spelling of 433472399 in words is "four hundred thirty-three million, four hundred seventy-two thousand, three hundred ninety-nine".