40372352 has 16 divisors (see below), whose sum is σ = 80429550. Its totient is φ = 20186112.

The previous prime is 40372351. The next prime is 40372361. The reversal of 40372352 is 25327304.

It can be written as a sum of positive squares in only one way, i.e., 39639616 + 732736 = 6296^2 + 856^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (40372351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157577 + ... + 157832.

Almost surely, 2^40372352 is an apocalyptic number.

It is an amenable number.

40372352 is a deficient number, since it is larger than the sum of its proper divisors (40057198).

40372352 is an equidigital number, since it uses as much as digits as its factorization.

40372352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315423 (or 315411 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 40372352 is about 6353.9241418198. The cubic root of 40372352 is about 343.0531017356.

Adding to 40372352 its reverse (25327304), we get a palindrome (65699656).

The spelling of 40372352 in words is "forty million, three hundred seventy-two thousand, three hundred fifty-two".