1968451 has 6 divisors (see below), whose sum is σ = 2019356. Its totient is φ = 1918800.

The previous prime is 1968427. The next prime is 1968467. The reversal of 1968451 is 1548691.

It is not a de Polignac number, because 1968451 - 2⁹ = 1967939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1968401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1096 + ... + 2266.

2^1968451 is an apocalyptic number.

1968451 is a deficient number, since it is larger than the sum of its proper divisors (50905).

1968451 is an equidigital number, since it uses as much as digits as its factorization.

1968451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253 (or 1212 counting only the distinct ones).

The product of its digits is 8640, while the sum is 34.

The square root of 1968451 is about 1403.0149678460. The cubic root of 1968451 is about 125.3261031806.

The spelling of 1968451 in words is "one million, nine hundred sixty-eight thousand, four hundred fifty-one".