40488031 has 16 divisors (see below), whose sum is σ = 44431200. Its totient is φ = 36747648.

The previous prime is 40488017. The next prime is 40488043. The reversal of 40488031 is 13088404.

It is a cyclic number.

It is not a de Polignac number, because 40488031 - 2⁷ = 40487903 is a prime.

It is a super-2 number, since 2×40488031² = 3278561308513922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40488001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108361 + ... + 108733.

It is an arithmetic number, because the mean of its divisors is an integer number (2776950).

Almost surely, 2^40488031 is an apocalyptic number.

40488031 is a deficient number, since it is larger than the sum of its proper divisors (3943169).

40488031 is a wasteful number, since it uses less digits than its factorization.

40488031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 40488031 is about 6363.0205877398. The cubic root of 40488031 is about 343.3804395939.

The spelling of 40488031 in words is "forty million, four hundred eighty-eight thousand, thirty-one".