40231045 has 12 divisors (see below), whose sum is σ = 49566636. Its totient is φ = 31328960.

The previous prime is 40231039. The next prime is 40231049. The reversal of 40231045 is 54013204.

It can be written as a sum of positive squares in 2 ways, for example, as 7064964 + 33166081 = 2658^2 + 5759^2 .

It is not a de Polignac number, because 40231045 - 2¹⁷ = 40099973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40231049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90594 + ... + 91036.

It is an arithmetic number, because the mean of its divisors is an integer number (4130553).

Almost surely, 2^40231045 is an apocalyptic number.

It is an amenable number.

40231045 is a deficient number, since it is larger than the sum of its proper divisors (9335591).

40231045 is an frugal number, since it uses more digits than its factorization.

40231045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 40231045 is about 6342.7947310314. The cubic root of 40231045 is about 342.6523945760.

Adding to 40231045 its reverse (54013204), we get a palindrome (94244249).

The spelling of 40231045 in words is "forty million, two hundred thirty-one thousand, forty-five".