40417372 has 12 divisors (see below), whose sum is σ = 71431416. Its totient is φ = 20008400.

The previous prime is 40417367. The next prime is 40417373. The reversal of 40417372 is 27371404.

It is a self number, because there is not a number n which added to its sum of digits gives 40417372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40417373) 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, 49618 + ... + 50425.

It is an arithmetic number, because the mean of its divisors is an integer number (5952618).

Almost surely, 2^40417372 is an apocalyptic number.

It is an amenable number.

40417372 is a deficient number, since it is larger than the sum of its proper divisors (31014044).

40417372 is a wasteful number, since it uses less digits than its factorization.

40417372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100148 (or 100146 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 40417372 is about 6357.4658473326. The cubic root of 40417372 is about 343.1805694431.

Adding to 40417372 its reverse (27371404), we get a palindrome (67788776).

The spelling of 40417372 in words is "forty million, four hundred seventeen thousand, three hundred seventy-two".