40243152 has 20 divisors (see below), whose sum is σ = 103961600. Its totient is φ = 13414368.

The previous prime is 40243117. The next prime is 40243163. The reversal of 40243152 is 25134204.

It is a super-2 number, since 2×40243152² = 3239022565790208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419152 + ... + 419247.

It is an arithmetic number, because the mean of its divisors is an integer number (5198080).

Almost surely, 2^40243152 is an apocalyptic number.

It is an amenable number.

40243152 is an abundant number, since it is smaller than the sum of its proper divisors (63718448).

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

40243152 is a wasteful number, since it uses less digits than its factorization.

40243152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838410 (or 838404 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 40243152 is about 6343.7490492610. The cubic root of 40243152 is about 342.6867633615.

Adding to 40243152 its reverse (25134204), we get a palindrome (65377356).

The spelling of 40243152 in words is "forty million, two hundred forty-three thousand, one hundred fifty-two".