428622286 has 4 divisors (see below), whose sum is σ = 642933432. Its totient is φ = 214311142.

The previous prime is 428622269. The next prime is 428622329. The reversal of 428622286 is 682226824.

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, 107155570 + ... + 107155573.

It is an arithmetic number, because the mean of its divisors is an integer number (160733358).

Almost surely, 2^428622286 is an apocalyptic number.

428622286 is a deficient number, since it is larger than the sum of its proper divisors (214311146).

428622286 is a wasteful number, since it uses less digits than its factorization.

428622286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214311145.

The product of its digits is 147456, while the sum is 40.

The square root of 428622286 is about 20703.1950674286. The cubic root of 428622286 is about 753.9772629270.

The spelling of 428622286 in words is "four hundred twenty-eight million, six hundred twenty-two thousand, two hundred eighty-six".