3948428 has 24 divisors (see below), whose sum is σ = 7936320. Its totient is φ = 1699920.

The previous prime is 3948383. The next prime is 3948431. The reversal of 3948428 is 8248493.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 3948391 and 3948400.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1526 + ... + 3197.

It is an arithmetic number, because the mean of its divisors is an integer number (330680).

Almost surely, 2^3948428 is an apocalyptic number.

3948428 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3948428 is an abundant number, since it is smaller than the sum of its proper divisors (3987892).

3948428 is a wasteful number, since it uses less digits than its factorization.

3948428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4757 (or 4755 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 3948428 is about 1987.0651725598. The cubic root of 3948428 is about 158.0549400351.

The spelling of 3948428 in words is "three million, nine hundred forty-eight thousand, four hundred twenty-eight".