428324292 has 72 divisors (see below), whose sum is σ = 1184094912. Its totient is φ = 129470400.

The previous prime is 428324291. The next prime is 428324293. The reversal of 428324292 is 292423824.

428324292 is a `hidden beast` number, since 42 + 8 + 324 + 292 = 666.

It is an interprime number because it is at equal distance from previous prime (428324291) and next prime (428324293).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (428324291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191742 + ... + 193962.

Almost surely, 2^428324292 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428324292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (592047456).

428324292 is an abundant number, since it is smaller than the sum of its proper divisors (755770620).

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

428324292 is a wasteful number, since it uses less digits than its factorization.

428324292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729 (or 2724 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 428324292 is about 20695.9970042518. The cubic root of 428324292 is about 753.8024914971.

The spelling of 428324292 in words is "four hundred twenty-eight million, three hundred twenty-four thousand, two hundred ninety-two".