409280057 has 4 divisors (see below), whose sum is σ = 409323636. Its totient is φ = 409236480.

The previous prime is 409280033. The next prime is 409280059. The reversal of 409280057 is 750082904.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 24492601 + 384787456 = 4949^2 + 19616^2 .

It is a cyclic number.

It is not a de Polignac number, because 409280057 - 2¹⁰ = 409279033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 409279999 and 409280026.

It is not an unprimeable number, because it can be changed into a prime (409280059) 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, 1244 + ... + 28637.

It is an arithmetic number, because the mean of its divisors is an integer number (102330909).

Almost surely, 2^409280057 is an apocalyptic number.

It is an amenable number.

409280057 is a deficient number, since it is larger than the sum of its proper divisors (43579).

409280057 is a wasteful number, since it uses less digits than its factorization.

409280057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43578.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 409280057 is about 20230.6711949950. The cubic root of 409280057 is about 742.4607979242.

The spelling of 409280057 in words is "four hundred nine million, two hundred eighty thousand, fifty-seven".