1662311426 has 8 divisors (see below), whose sum is σ = 2494018560. Its totient is φ = 830971908.

The previous prime is 1662311393. The next prime is 1662311449. The reversal of 1662311426 is 6241132661.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1662311392 and 1662311401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80306 + ... + 98861.

It is an arithmetic number, because the mean of its divisors is an integer number (311752320).

Almost surely, 2^1662311426 is an apocalyptic number.

1662311426 is a deficient number, since it is larger than the sum of its proper divisors (831707134).

1662311426 is a wasteful number, since it uses less digits than its factorization.

1662311426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183808.

The product of its digits is 10368, while the sum is 32.

The square root of 1662311426 is about 40771.4535674165. The cubic root of 1662311426 is about 1184.5974588629.

The spelling of 1662311426 in words is "one billion, six hundred sixty-two million, three hundred eleven thousand, four hundred twenty-six".