40152331 has 4 divisors (see below), whose sum is σ = 40260352. Its totient is φ = 40044312.

The previous prime is 40152293. The next prime is 40152337. The reversal of 40152331 is 13325104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40152331 - 2¹¹ = 40150283 is a prime.

It is a super-2 number, since 2×40152331² = 3224419369467122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40152299 and 40152308.

It is not an unprimeable number, because it can be changed into a prime (40152337) 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, 53451 + ... + 54196.

It is an arithmetic number, because the mean of its divisors is an integer number (10065088).

Almost surely, 2^40152331 is an apocalyptic number.

40152331 is a deficient number, since it is larger than the sum of its proper divisors (108021).

40152331 is a wasteful number, since it uses less digits than its factorization.

40152331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108020.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 40152331 is about 6336.5866994779. The cubic root of 40152331 is about 342.4287766369.

Adding to 40152331 its reverse (13325104), we get a palindrome (53477435).

The spelling of 40152331 in words is "forty million, one hundred fifty-two thousand, three hundred thirty-one".