408295221 has 8 divisors (see below), whose sum is σ = 548680704. Its totient is φ = 270053280.

The previous prime is 408295219. The next prime is 408295229. The reversal of 408295221 is 122592804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 408295221 - 2¹ = 408295219 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408295229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535440 + ... + 536201.

It is an arithmetic number, because the mean of its divisors is an integer number (68585088).

Almost surely, 2^408295221 is an apocalyptic number.

It is an amenable number.

408295221 is a deficient number, since it is larger than the sum of its proper divisors (140385483).

408295221 is a wasteful number, since it uses less digits than its factorization.

408295221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071771.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 408295221 is about 20206.3163639492. The cubic root of 408295221 is about 741.8648006491.

The spelling of 408295221 in words is "four hundred eight million, two hundred ninety-five thousand, two hundred twenty-one".