1968790 has 8 divisors (see below), whose sum is σ = 3543840. Its totient is φ = 787512.

The previous prime is 1968773. The next prime is 1968797. The reversal of 1968790 is 978691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1968790² = 7752268128200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98430 + ... + 98449.

It is an arithmetic number, because the mean of its divisors is an integer number (442980).

2^1968790 is an apocalyptic number.

1968790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1968790 is a deficient number, since it is larger than the sum of its proper divisors (1575050).

1968790 is a wasteful number, since it uses less digits than its factorization.

1968790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196886.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 1968790 is about 1403.1357739007. The cubic root of 1968790 is about 125.3332971807. Note that the first 3 decimals are identical.

Subtracting from 1968790 its reverse (978691), we obtain a palindrome (990099).

The spelling of 1968790 in words is "one million, nine hundred sixty-eight thousand, seven hundred ninety".