455201986 has 4 divisors (see below), whose sum is σ = 682802982. Its totient is φ = 227600992.

The previous prime is 455201977. The next prime is 455202017. The reversal of 455201986 is 689102554.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 349503025 + 105698961 = 18695^2 + 10281^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 as a sum of consecutive naturals, namely, 113800495 + ... + 113800498.

Almost surely, 2^455201986 is an apocalyptic number.

455201986 is a deficient number, since it is larger than the sum of its proper divisors (227600996).

455201986 is a wasteful number, since it uses less digits than its factorization.

455201986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227600995.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 455201986 is about 21335.4631072306. The cubic root of 455201986 is about 769.2509644036.

The spelling of 455201986 in words is "four hundred fifty-five million, two hundred one thousand, nine hundred eighty-six".