428324091 has 8 divisors (see below), whose sum is σ = 615029520. Its totient is φ = 263584032.

The previous prime is 428324081. The next prime is 428324093. The reversal of 428324091 is 190423824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 428324091 - 2⁵ = 428324059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428324093) 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, 5491296 + ... + 5491373.

It is an arithmetic number, because the mean of its divisors is an integer number (76878690).

Almost surely, 2^428324091 is an apocalyptic number.

428324091 is a deficient number, since it is larger than the sum of its proper divisors (186705429).

428324091 is a wasteful number, since it uses less digits than its factorization.

428324091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10982685.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 428324091 is about 20695.9921482397. The cubic root of 428324091 is about 753.8023735847.

The spelling of 428324091 in words is "four hundred twenty-eight million, three hundred twenty-four thousand, ninety-one".