8404386135 has 32 divisors (see below), whose sum is σ = 14243366592. Its totient is φ = 4217088000.

The previous prime is 8404386131. The next prime is 8404386143. The reversal of 8404386135 is 5316834048.

It is not a de Polignac number, because 8404386135 - 2² = 8404386131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8404386131) 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, 984385 + ... + 992885.

It is an arithmetic number, because the mean of its divisors is an integer number (445105206).

Almost surely, 2^8404386135 is an apocalyptic number.

8404386135 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

8404386135 is a deficient number, since it is larger than the sum of its proper divisors (5838980457).

8404386135 is a wasteful number, since it uses less digits than its factorization.

8404386135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12403.

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 8404386135 is about 91675.4391044843. The cubic root of 8404386135 is about 2033.1464656870.

The spelling of 8404386135 in words is "eight billion, four hundred four million, three hundred eighty-six thousand, one hundred thirty-five".