404961513 has 8 divisors (see below), whose sum is σ = 589034976. Its totient is φ = 245431200.

The previous prime is 404961511. The next prime is 404961521. The reversal of 404961513 is 315169404.

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

It is not a de Polignac number, because 404961513 - 2¹ = 404961511 is a prime.

It is a super-2 number, since 2×404961513² = 327987654022498338, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 12271561 = 404961513 / (4 + 0 + 4 + 9 + 6 + 1 + 5 + 1 + 3).

It is not an unprimeable number, because it can be changed into a prime (404961511) 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 7 ways as a sum of consecutive naturals, for example, 6135748 + ... + 6135813.

It is an arithmetic number, because the mean of its divisors is an integer number (73629372).

Almost surely, 2^404961513 is an apocalyptic number.

It is an amenable number.

404961513 is a deficient number, since it is larger than the sum of its proper divisors (184073463).

404961513 is a wasteful number, since it uses less digits than its factorization.

404961513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12271575.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 404961513 is about 20123.6555575770. The cubic root of 404961513 is about 739.8401852347.

The spelling of 404961513 in words is "four hundred four million, nine hundred sixty-one thousand, five hundred thirteen".