409475453 has 2 divisors, whose sum is σ = 409475454. Its totient is φ = 409475452.

The previous prime is 409475449. The next prime is 409475459. The reversal of 409475453 is 354574904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 370062169 + 39413284 = 19237^2 + 6278^2 .

It is a cyclic number.

It is not a de Polignac number, because 409475453 - 2² = 409475449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 409475453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409475459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204737726 + 204737727.

It is an arithmetic number, because the mean of its divisors is an integer number (204737727).

Almost surely, 2^409475453 is an apocalyptic number.

It is an amenable number.

409475453 is a deficient number, since it is larger than the sum of its proper divisors (1).

409475453 is an equidigital number, since it uses as much as digits as its factorization.

409475453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 41.

The square root of 409475453 is about 20235.4998208594. The cubic root of 409475453 is about 742.5789328353.

The spelling of 409475453 in words is "four hundred nine million, four hundred seventy-five thousand, four hundred fifty-three".