214666402 has 4 divisors (see below), whose sum is σ = 321999606. Its totient is φ = 107333200.

The previous prime is 214666399. The next prime is 214666411. The reversal of 214666402 is 204666412.

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., 125193721 + 89472681 = 11189^2 + 9459^2 .

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, 53666599 + ... + 53666602.

Almost surely, 2^214666402 is an apocalyptic number.

214666402 is a deficient number, since it is larger than the sum of its proper divisors (107333204).

214666402 is a wasteful number, since it uses less digits than its factorization.

214666402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107333203.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 214666402 is about 14651.4982851584. The cubic root of 214666402 is about 598.7626370126.

The spelling of 214666402 in words is "two hundred fourteen million, six hundred sixty-six thousand, four hundred two".