532198409 has 4 divisors (see below), whose sum is σ = 545178900. Its totient is φ = 519217920.

The previous prime is 532198399. The next prime is 532198441. The reversal of 532198409 is 904891235.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 303735184 + 228463225 = 17428^2 + 15115^2 .

It is a cyclic number.

It is not a de Polignac number, because 532198409 - 2²⁸ = 263762953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 12980449 = 532198409 / (5 + 3 + 2 + 1 + 9 + 8 + 4 + 0 + 9).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (532198489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6490184 + ... + 6490265.

It is an arithmetic number, because the mean of its divisors is an integer number (136294725).

Almost surely, 2^532198409 is an apocalyptic number.

It is an amenable number.

532198409 is a deficient number, since it is larger than the sum of its proper divisors (12980491).

532198409 is a wasteful number, since it uses less digits than its factorization.

532198409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12980490.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 532198409 is about 23069.4258489456. The cubic root of 532198409 is about 810.3846209751.

The spelling of 532198409 in words is "five hundred thirty-two million, one hundred ninety-eight thousand, four hundred nine".