427070146 has 4 divisors (see below), whose sum is σ = 640605222. Its totient is φ = 213535072.

The previous prime is 427070123. The next prime is 427070159. The reversal of 427070146 is 641070724.

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., 399560121 + 27510025 = 19989^2 + 5245^2 .

It is a super-2 number, since 2×427070146² = 364777819208922632, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) 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, 106767535 + ... + 106767538.

Almost surely, 2^427070146 is an apocalyptic number.

427070146 is a deficient number, since it is larger than the sum of its proper divisors (213535076).

427070146 is a wasteful number, since it uses less digits than its factorization.

427070146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213535075.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 427070146 is about 20665.6755515033. The cubic root of 427070146 is about 753.0660537096.

The spelling of 427070146 in words is "four hundred twenty-seven million, seventy thousand, one hundred forty-six".