396434185 has 16 divisors (see below), whose sum is σ = 546268032. Its totient is φ = 270547200.

The previous prime is 396434173. The next prime is 396434201. The reversal of 396434185 is 581434693.

It is not a de Polignac number, because 396434185 - 2⁵ = 396434153 is a prime.

It is a super-2 number, since 2×396434185² = 314320126073228450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 19456 + ... + 34225.

It is an arithmetic number, because the mean of its divisors is an integer number (34141752).

Almost surely, 2^396434185 is an apocalyptic number.

396434185 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

396434185 is a deficient number, since it is larger than the sum of its proper divisors (149833847).

396434185 is a wasteful number, since it uses less digits than its factorization.

396434185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53904.

The product of its digits is 311040, while the sum is 43.

The square root of 396434185 is about 19910.6550620516. The cubic root of 396434185 is about 734.6103322689.

The spelling of 396434185 in words is "three hundred ninety-six million, four hundred thirty-four thousand, one hundred eighty-five".