420158894 has 16 divisors (see below), whose sum is σ = 692254080. Its totient is φ = 190369080.

The previous prime is 420158839. The next prime is 420158899. The reversal of 420158894 is 498851024.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420158899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239492 + ... + 241239.

It is an arithmetic number, because the mean of its divisors is an integer number (43265880).

Almost surely, 2^420158894 is an apocalyptic number.

420158894 is a deficient number, since it is larger than the sum of its proper divisors (272095186).

420158894 is a wasteful number, since it uses less digits than its factorization.

420158894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480775.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 420158894 is about 20497.7777819938. Note that the first 4 decimals coincide. The cubic root of 420158894 is about 748.9816662506.

The spelling of 420158894 in words is "four hundred twenty million, one hundred fifty-eight thousand, eight hundred ninety-four".