428341446 has 104 divisors (see below), whose sum is σ = 1071384384. Its totient is φ = 127545840.

The previous prime is 428341423. The next prime is 428341457. The reversal of 428341446 is 644143824.

It is a super-2 number, since 2×428341446² = 366952788722741832, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 428341446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 51 ways as a sum of consecutive naturals, for example, 13817451 + ... + 13817481.

Almost surely, 2^428341446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428341446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535692192).

428341446 is an abundant number, since it is smaller than the sum of its proper divisors (643042938).

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

428341446 is an frugal number, since it uses more digits than its factorization.

428341446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 49 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

The square root of 428341446 is about 20696.4114280713. The cubic root of 428341446 is about 753.8125543985.

The spelling of 428341446 in words is "four hundred twenty-eight million, three hundred forty-one thousand, four hundred forty-six".