428329349 has 8 divisors (see below), whose sum is σ = 490158720. Its totient is φ = 366659856.

The previous prime is 428329313. The next prime is 428329351. The reversal of 428329349 is 943923824.

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

It is a cyclic number.

It is not a de Polignac number, because 428329349 - 2¹² = 428325253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428329309) 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, 34169 + ... + 44990.

It is an arithmetic number, because the mean of its divisors is an integer number (61269840).

Almost surely, 2^428329349 is an apocalyptic number.

It is an amenable number.

428329349 is a deficient number, since it is larger than the sum of its proper divisors (61829371).

428329349 is an equidigital number, since it uses as much as digits as its factorization.

428329349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79939.

The product of its digits is 373248, while the sum is 44.

The square root of 428329349 is about 20696.1191772757. The cubic root of 428329349 is about 753.8054580689.

The spelling of 428329349 in words is "four hundred twenty-eight million, three hundred twenty-nine thousand, three hundred forty-nine".