199485405 has 24 divisors (see below), whose sum is σ = 395171712. Its totient is φ = 91193184.

The previous prime is 199485383. The next prime is 199485439. The reversal of 199485405 is 504584991.

199485405 is a `hidden beast` number, since 19 + 94 + 8 + 540 + 5 = 666.

It is not a de Polignac number, because 199485405 - 2⁵ = 199485373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 316329 + ... + 316958.

It is an arithmetic number, because the mean of its divisors is an integer number (16465488).

Almost surely, 2^199485405 is an apocalyptic number.

199485405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

199485405 is a deficient number, since it is larger than the sum of its proper divisors (195686307).

199485405 is a wasteful number, since it uses less digits than its factorization.

199485405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633305 (or 633302 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 199485405 is about 14123.9302249763. The cubic root of 199485405 is about 584.3015552221.

The spelling of 199485405 in words is "one hundred ninety-nine million, four hundred eighty-five thousand, four hundred five".