40717240 has 32 divisors (see below), whose sum is σ = 92987280. Its totient is φ = 16042752.

The previous prime is 40717213. The next prime is 40717249. The reversal of 40717240 is 4271704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40717249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4917 + ... + 10276.

Almost surely, 2^40717240 is an apocalyptic number.

40717240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40717240 is an abundant number, since it is smaller than the sum of its proper divisors (52270040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40717240 is a wasteful number, since it uses less digits than its factorization.

40717240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15271 (or 15267 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 40717240 is about 6381.0061902493. The cubic root of 40717240 is about 344.0271972367.

Adding to 40717240 its reverse (4271704), we get a palindrome (44988944).

It can be divided in two parts, 4071 and 7240, that added together give a palindrome (11311).

The spelling of 40717240 in words is "forty million, seven hundred seventeen thousand, two hundred forty".