4007428 has 24 divisors (see below), whose sum is σ = 7495488. Its totient is φ = 1870176.

The previous prime is 4007413. The next prime is 4007429. The reversal of 4007428 is 8247004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4007429) 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, 3450 + ... + 4462.

It is an arithmetic number, because the mean of its divisors is an integer number (312312).

Almost surely, 2^4007428 is an apocalyptic number.

It is an amenable number.

4007428 is a deficient number, since it is larger than the sum of its proper divisors (3488060).

4007428 is a wasteful number, since it uses less digits than its factorization.

4007428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083 (or 1081 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 4007428 is about 2001.8561386873. The cubic root of 4007428 is about 158.8383045616.

The spelling of 4007428 in words is "four million, seven thousand, four hundred twenty-eight".