1428938 has 16 divisors (see below), whose sum is σ = 2500800. Its totient is φ = 612108.

The previous prime is 1428937. The next prime is 1428949. The reversal of 1428938 is 8398241.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1428898 and 1428907.

It is not an unprimeable number, because it can be changed into a prime (1428937) 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, 356 + ... + 1727.

It is an arithmetic number, because the mean of its divisors is an integer number (156300).

2^1428938 is an apocalyptic number.

1428938 is a deficient number, since it is larger than the sum of its proper divisors (1071862).

1428938 is an equidigital number, since it uses as much as digits as its factorization.

1428938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106 (or 2092 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 1428938 is about 1195.3819473290. The cubic root of 1428938 is about 112.6344203941.

The spelling of 1428938 in words is "one million, four hundred twenty-eight thousand, nine hundred thirty-eight".