940571969 has 4 divisors (see below), whose sum is σ = 945346644. Its totient is φ = 935797296.

The previous prime is 940571881. The next prime is 940571977. The reversal of 940571969 is 969175049.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 969175049 = 17 ⋅57010297.

It can be written as a sum of positive squares in 2 ways, for example, as 502297744 + 438274225 = 22412^2 + 20935^2 .

It is a cyclic number.

It is not a de Polignac number, because 940571969 - 2²⁰ = 939523393 is a prime.

It is a super-2 number, since 2×940571969² = 1769351257737073922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (940571069) 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, 2387042 + ... + 2387435.

It is an arithmetic number, because the mean of its divisors is an integer number (236336661).

Almost surely, 2^940571969 is an apocalyptic number.

It is an amenable number.

940571969 is a deficient number, since it is larger than the sum of its proper divisors (4774675).

940571969 is a wasteful number, since it uses less digits than its factorization.

940571969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4774674.

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 940571969 is about 30668.7458008964. The cubic root of 940571969 is about 979.7847538516.

The spelling of 940571969 in words is "nine hundred forty million, five hundred seventy-one thousand, nine hundred sixty-nine".