40080831 has 8 divisors (see below), whose sum is σ = 61075584. Its totient is φ = 22903320.

The previous prime is 40080827. The next prime is 40080839. The reversal of 40080831 is 13808004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40080831 - 2² = 40080827 is a prime.

It is a super-2 number, since 2×40080831² = 3212946027301122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40080839) 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, 954285 + ... + 954326.

It is an arithmetic number, because the mean of its divisors is an integer number (7634448).

Almost surely, 2^40080831 is an apocalyptic number.

40080831 is a deficient number, since it is larger than the sum of its proper divisors (20994753).

40080831 is a wasteful number, since it uses less digits than its factorization.

40080831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908621.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 40080831 is about 6330.9423469180. The cubic root of 40080831 is about 342.2253994469.

Adding to 40080831 its reverse (13808004), we get a palindrome (53888835).

The spelling of 40080831 in words is "forty million, eighty thousand, eight hundred thirty-one".