420692158 has 4 divisors (see below), whose sum is σ = 631038240. Its totient is φ = 210346078.

The previous prime is 420692147. The next prime is 420692161. The reversal of 420692158 is 851296024.

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

It is a congruent 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, 105173038 + ... + 105173041.

It is an arithmetic number, because the mean of its divisors is an integer number (157759560).

Almost surely, 2^420692158 is an apocalyptic number.

420692158 is a deficient number, since it is larger than the sum of its proper divisors (210346082).

420692158 is a wasteful number, since it uses less digits than its factorization.

420692158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210346081.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 420692158 is about 20510.7815063200. The cubic root of 420692158 is about 749.2984004747.

The spelling of 420692158 in words is "four hundred twenty million, six hundred ninety-two thousand, one hundred fifty-eight".