404821495 has 16 divisors (see below), whose sum is σ = 535917312. Its totient is φ = 291651840.

The previous prime is 404821463. The next prime is 404821499. The reversal of 404821495 is 594128404.

It is not a de Polignac number, because 404821495 - 2⁵ = 404821463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404821499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73287 + ... + 78616.

It is an arithmetic number, because the mean of its divisors is an integer number (33494832).

Almost surely, 2^404821495 is an apocalyptic number.

404821495 is a deficient number, since it is larger than the sum of its proper divisors (131095817).

404821495 is a wasteful number, since it uses less digits than its factorization.

404821495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151962.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 404821495 is about 20120.1763163249. The cubic root of 404821495 is about 739.7549072671.

Adding to 404821495 its reverse (594128404), we get a palindrome (998949899).

The spelling of 404821495 in words is "four hundred four million, eight hundred twenty-one thousand, four hundred ninety-five".