940256566 has 4 divisors (see below), whose sum is σ = 1410384852. Its totient is φ = 470128282.

The previous prime is 940256549. The next prime is 940256633. The reversal of 940256566 is 665652049.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×940256566² = 1768164819812224712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235064140 + ... + 235064143.

It is an arithmetic number, because the mean of its divisors is an integer number (352596213).

Almost surely, 2^940256566 is an apocalyptic number.

940256566 is a deficient number, since it is larger than the sum of its proper divisors (470128286).

940256566 is a wasteful number, since it uses less digits than its factorization.

940256566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470128285.

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 940256566 is about 30663.6032781537. The cubic root of 940256566 is about 979.6752241861.

The spelling of 940256566 in words is "nine hundred forty million, two hundred fifty-six thousand, five hundred sixty-six".