4012428 has 48 divisors (see below), whose sum is σ = 10997504. Its totient is φ = 1114560.

The previous prime is 4012381. The next prime is 4012441. The reversal of 4012428 is 8242104.

4012428 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2463 + ... + 3753.

Almost surely, 2^4012428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4012428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5498752).

4012428 is an abundant number, since it is smaller than the sum of its proper divisors (6985076).

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

4012428 is a wasteful number, since it uses less digits than its factorization.

4012428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342 (or 1340 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 4012428 is about 2003.1045903796. The cubic root of 4012428 is about 158.9043370602.

The spelling of 4012428 in words is "four million, twelve thousand, four hundred twenty-eight".