940040471 has 4 divisors (see below), whose sum is σ = 940465944. Its totient is φ = 939615000.

The previous prime is 940040461. The next prime is 940040477. The reversal of 940040471 is 174040049.

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

It is a cyclic number.

It is not a de Polignac number, because 940040471 - 2⁶ = 940040407 is a prime.

It is a super-3 number, since 3×940040471³ (a number of 28 digits) contains 333 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 (940040477) 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, 209405 + ... + 213846.

It is an arithmetic number, because the mean of its divisors is an integer number (235116486).

Almost surely, 2^940040471 is an apocalyptic number.

940040471 is a deficient number, since it is larger than the sum of its proper divisors (425473).

940040471 is a wasteful number, since it uses less digits than its factorization.

940040471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425472.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 940040471 is about 30660.0794356440. The cubic root of 940040471 is about 979.6001669640.

The spelling of 940040471 in words is "nine hundred forty million, forty thousand, four hundred seventy-one".