40225331 has 4 divisors (see below), whose sum is σ = 40345032. Its totient is φ = 40105632.

The previous prime is 40225319. The next prime is 40225333. The reversal of 40225331 is 13352204.

It is a happy number.

40225331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40225331 is a prime.

It is a super-2 number, since 2×40225331² = 3236154508119122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40225333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59345 + ... + 60018.

It is an arithmetic number, because the mean of its divisors is an integer number (10086258).

Almost surely, 2^40225331 is an apocalyptic number.

40225331 is a deficient number, since it is larger than the sum of its proper divisors (119701).

40225331 is a wasteful number, since it uses less digits than its factorization.

40225331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119700.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 40225331 is about 6342.3442826766. The cubic root of 40225331 is about 342.6361715449.

Adding to 40225331 its reverse (13352204), we get a palindrome (53577535).

The spelling of 40225331 in words is "forty million, two hundred twenty-five thousand, three hundred thirty-one".