428591622 has 16 divisors (see below), whose sum is σ = 863441712. Its totient is φ = 141820800.

The previous prime is 428591587. The next prime is 428591629. The reversal of 428591622 is 226195824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428591629) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 259879 + ... + 261522.

It is an arithmetic number, because the mean of its divisors is an integer number (53965107).

Almost surely, 2^428591622 is an apocalyptic number.

428591622 is an abundant number, since it is smaller than the sum of its proper divisors (434850090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428591622 is a wasteful number, since it uses less digits than its factorization.

428591622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521543.

The product of its digits is 69120, while the sum is 39.

The square root of 428591622 is about 20702.4544921611. The cubic root of 428591622 is about 753.9592824417.

The spelling of 428591622 in words is "four hundred twenty-eight million, five hundred ninety-one thousand, six hundred twenty-two".