408454069 has 4 divisors (see below), whose sum is σ = 408596544. Its totient is φ = 408311596.

The previous prime is 408454061. The next prime is 408454097. The reversal of 408454069 is 960454804.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 408454069 - 2³ = 408454061 is a prime.

It is a super-2 number, since 2×408454069² = 333669452965313522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408454061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66847 + ... + 72700.

It is an arithmetic number, because the mean of its divisors is an integer number (102149136).

Almost surely, 2^408454069 is an apocalyptic number.

It is an amenable number.

408454069 is a deficient number, since it is larger than the sum of its proper divisors (142475).

408454069 is a wasteful number, since it uses less digits than its factorization.

408454069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142474.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 408454069 is about 20210.2466338241. The cubic root of 408454069 is about 741.9609961262.

The spelling of 408454069 in words is "four hundred eight million, four hundred fifty-four thousand, sixty-nine".