1421968 has 10 divisors (see below), whose sum is σ = 2755094. Its totient is φ = 710976.

The previous prime is 1421963. The next prime is 1421969. The reversal of 1421968 is 8691241.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1327104 + 94864 = 1152^2 + 308^2 .

It is not an unprimeable number, because it can be changed into a prime (1421963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44421 + ... + 44452.

2^1421968 is an apocalyptic number.

It is an amenable number.

1421968 is a deficient number, since it is larger than the sum of its proper divisors (1333126).

1421968 is an equidigital number, since it uses as much as digits as its factorization.

1421968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88881 (or 88875 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 1421968 is about 1192.4629973295. The cubic root of 1421968 is about 112.4509877037.

The spelling of 1421968 in words is "one million, four hundred twenty-one thousand, nine hundred sixty-eight".