404509963 has 8 divisors (see below), whose sum is σ = 475228656. Its totient is φ = 339448800.

The previous prime is 404509961. The next prime is 404509967. The reversal of 404509963 is 369905404.

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

It is a cyclic number.

It is not a de Polignac number, because 404509963 - 2¹ = 404509961 is a prime.

It is a super-2 number, since 2×404509963² = 327256620332522738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404509961) 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, 1414228 + ... + 1414513.

It is an arithmetic number, because the mean of its divisors is an integer number (59403582).

Almost surely, 2^404509963 is an apocalyptic number.

404509963 is a deficient number, since it is larger than the sum of its proper divisors (70718693).

404509963 is a wasteful number, since it uses less digits than its factorization.

404509963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2828765.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 404509963 is about 20112.4330452583. The cubic root of 404509963 is about 739.5650981204.

The spelling of 404509963 in words is "four hundred four million, five hundred nine thousand, nine hundred sixty-three".