40260331 has 4 divisors (see below), whose sum is σ = 40651312. Its totient is φ = 39869352.

The previous prime is 40260313. The next prime is 40260383. The reversal of 40260331 is 13306204.

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 40260331 - 2⁷ = 40260203 is a prime.

It is a super-2 number, since 2×40260331² = 3241788504459122, 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 = 40260299 and 40260308.

It is not an unprimeable number, because it can be changed into a prime (40260391) 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, 195336 + ... + 195541.

It is an arithmetic number, because the mean of its divisors is an integer number (10162828).

Almost surely, 2^40260331 is an apocalyptic number.

40260331 is a deficient number, since it is larger than the sum of its proper divisors (390981).

40260331 is a wasteful number, since it uses less digits than its factorization.

40260331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390980.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 40260331 is about 6345.1029148470. The cubic root of 40260331 is about 342.7355184757.

Adding to 40260331 its reverse (13306204), we get a palindrome (53566535).

The spelling of 40260331 in words is "forty million, two hundred sixty thousand, three hundred thirty-one".