40007471 has 12 divisors (see below), whose sum is σ = 47799288. Its totient is φ = 33363792.

The previous prime is 40007467. The next prime is 40007479. The reversal of 40007471 is 17470004.

It is not a de Polignac number, because 40007471 - 2² = 40007467 is a prime.

It is a super-3 number, since 3×40007471³ (a number of 24 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 (40007479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9221 + ... + 12846.

It is an arithmetic number, because the mean of its divisors is an integer number (3983274).

Almost surely, 2^40007471 is an apocalyptic number.

40007471 is a deficient number, since it is larger than the sum of its proper divisors (7791817).

40007471 is a wasteful number, since it uses less digits than its factorization.

40007471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22118 (or 22111 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 40007471 is about 6325.1459271704. The cubic root of 40007471 is about 342.0164800604.

Adding to 40007471 its reverse (17470004), we get a palindrome (57477475).

The spelling of 40007471 in words is "forty million, seven thousand, four hundred seventy-one".