4129428 has 24 divisors (see below), whose sum is σ = 9690688. Its totient is φ = 1368576.

The previous prime is 4129423. The next prime is 4129429. The reversal of 4129428 is 8249214.

It is a junction number, because it is equal to n+sod(n) for n = 4129395 and 4129404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4129423) 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, 1425 + ... + 3207.

Almost surely, 2^4129428 is an apocalyptic number.

It is an amenable number.

4129428 is an abundant number, since it is smaller than the sum of its proper divisors (5561260).

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

4129428 is a wasteful number, since it uses less digits than its factorization.

4129428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983 (or 1981 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 4129428 is about 2032.0994070173. The cubic root of 4129428 is about 160.4340816835.

The spelling of 4129428 in words is "four million, one hundred twenty-nine thousand, four hundred twenty-eight".