428522094 has 192 divisors, whose sum is σ = 1320883200. Its totient is φ = 96629760.

The previous prime is 428522071. The next prime is 428522099. The reversal of 428522094 is 490225824.

428522094 is a `hidden beast` number, since 42 + 8 + 522 + 0 + 94 = 666.

It is a super-2 number, since 2×428522094² = 367262370092289672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428522099) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 305607 + ... + 307005.

It is an arithmetic number, because the mean of its divisors is an integer number (6879600).

Almost surely, 2^428522094 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428522094, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (660441600).

428522094 is an abundant number, since it is smaller than the sum of its proper divisors (892361106).

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

428522094 is a wasteful number, since it uses less digits than its factorization.

428522094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455 (or 1452 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 428522094 is about 20700.7752028759. The cubic root of 428522094 is about 753.9185100504.

The spelling of 428522094 in words is "four hundred twenty-eight million, five hundred twenty-two thousand, ninety-four".