428980349 has 12 divisors (see below), whose sum is σ = 505339200. Its totient is φ = 363039768.

The previous prime is 428980333. The next prime is 428980361. The reversal of 428980349 is 943089824.

It is not a de Polignac number, because 428980349 - 2⁴ = 428980333 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 (428980319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51539 + ... + 59280.

It is an arithmetic number, because the mean of its divisors is an integer number (42111600).

Almost surely, 2^428980349 is an apocalyptic number.

428980349 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

428980349 is a deficient number, since it is larger than the sum of its proper divisors (76358851).

428980349 is a wasteful number, since it uses less digits than its factorization.

428980349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110912 (or 110905 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 428980349 is about 20711.8407921652. The cubic root of 428980349 is about 754.1871573010.

The spelling of 428980349 in words is "four hundred twenty-eight million, nine hundred eighty thousand, three hundred forty-nine".