413266821 has 32 divisors (see below), whose sum is σ = 638928000. Its totient is φ = 235639040.

The previous prime is 413266813. The next prime is 413266871. The reversal of 413266821 is 128662314.

It is not a de Polignac number, because 413266821 - 2³ = 413266813 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (413266871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160855 + ... + 163403.

It is an arithmetic number, because the mean of its divisors is an integer number (19966500).

Almost surely, 2^413266821 is an apocalyptic number.

It is an amenable number.

413266821 is a deficient number, since it is larger than the sum of its proper divisors (225661179).

413266821 is a wasteful number, since it uses less digits than its factorization.

413266821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2614 (or 2580 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 413266821 is about 20328.9650744941. The cubic root of 413266821 is about 744.8637626050.

The spelling of 413266821 in words is "four hundred thirteen million, two hundred sixty-six thousand, eight hundred twenty-one".