428169413 has 4 divisors (see below), whose sum is σ = 489336480. Its totient is φ = 367002348.

The previous prime is 428169407. The next prime is 428169419. The reversal of 428169413 is 314961824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (428169407) and next prime (428169419).

It is a cyclic number.

It is not a de Polignac number, because 428169413 - 2¹² = 428165317 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 (428169419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30583523 + ... + 30583536.

It is an arithmetic number, because the mean of its divisors is an integer number (122334120).

Almost surely, 2^428169413 is an apocalyptic number.

It is an amenable number.

428169413 is a deficient number, since it is larger than the sum of its proper divisors (61167067).

428169413 is an equidigital number, since it uses as much as digits as its factorization.

428169413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61167066.

The product of its digits is 41472, while the sum is 38.

The square root of 428169413 is about 20692.2549037073. The cubic root of 428169413 is about 753.7116240144.

The spelling of 428169413 in words is "four hundred twenty-eight million, one hundred sixty-nine thousand, four hundred thirteen".