40303252 has 24 divisors (see below), whose sum is σ = 78583680. Its totient is φ = 17928960.

The previous prime is 40303231. The next prime is 40303253. The reversal of 40303252 is 25230304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40303253) 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, 7677 + ... + 11812.

It is an arithmetic number, because the mean of its divisors is an integer number (3274320).

Almost surely, 2^40303252 is an apocalyptic number.

It is an amenable number.

40303252 is a deficient number, since it is larger than the sum of its proper divisors (38280428).

40303252 is a wasteful number, since it uses less digits than its factorization.

40303252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19551 (or 19549 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 40303252 is about 6348.4842285383. The cubic root of 40303252 is about 342.8572704695.

Adding to 40303252 its reverse (25230304), we get a palindrome (65533556).

The spelling of 40303252 in words is "forty million, three hundred three thousand, two hundred fifty-two".