1966240223 has 8 divisors (see below), whose sum is σ = 2064402480. Its totient is φ = 1870102080.

The previous prime is 1966240219. The next prime is 1966240277. The reversal of 1966240223 is 3220426691.

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

It is a cyclic number.

It is not a de Polignac number, because 1966240223 - 2² = 1966240219 is a prime.

It is a super-2 number, since 2×1966240223² = 7732201229086179458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1966240823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504038 + ... + 507923.

It is an arithmetic number, because the mean of its divisors is an integer number (258050310).

Almost surely, 2^1966240223 is an apocalyptic number.

1966240223 is a deficient number, since it is larger than the sum of its proper divisors (98162257).

1966240223 is a wasteful number, since it uses less digits than its factorization.

1966240223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012057.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 1966240223 is about 44342.3073711777. The cubic root of 1966240223 is about 1252.7916748398.

The spelling of 1966240223 in words is "one billion, nine hundred sixty-six million, two hundred forty thousand, two hundred twenty-three".