428312158 has 16 divisors (see below), whose sum is σ = 659073744. Its totient is φ = 208635840.

The previous prime is 428312153. The next prime is 428312177. The reversal of 428312158 is 851213824.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428312153) 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, 61216 + ... + 67852.

It is an arithmetic number, because the mean of its divisors is an integer number (41192109).

Almost surely, 2^428312158 is an apocalyptic number.

428312158 is a deficient number, since it is larger than the sum of its proper divisors (230761586).

428312158 is a wasteful number, since it uses less digits than its factorization.

428312158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7467.

The product of its digits is 15360, while the sum is 34.

The square root of 428312158 is about 20695.7038536987. The cubic root of 428312158 is about 753.7953732723.

The spelling of 428312158 in words is "four hundred twenty-eight million, three hundred twelve thousand, one hundred fifty-eight".