40231005 has 8 divisors (see below), whose sum is σ = 64369632. Its totient is φ = 21456528.

The previous prime is 40231003. The next prime is 40231007. The reversal of 40231005 is 50013204.

40231005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40231003) and next prime (40231007).

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

It is not a de Polignac number, because 40231005 - 2¹ = 40231003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 2682067 = 40231005 / (4 + 0 + 2 + 3 + 1 + 0 + 0 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40231001) 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 7 ways as a sum of consecutive naturals, for example, 1341019 + ... + 1341048.

It is an arithmetic number, because the mean of its divisors is an integer number (8046204).

Almost surely, 2^40231005 is an apocalyptic number.

It is an amenable number.

40231005 is a deficient number, since it is larger than the sum of its proper divisors (24138627).

40231005 is a wasteful number, since it uses less digits than its factorization.

40231005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682075.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 40231005 is about 6342.7915778465. The cubic root of 40231005 is about 342.6522810144.

Adding to 40231005 its reverse (50013204), we get a palindrome (90244209).

The spelling of 40231005 in words is "forty million, two hundred thirty-one thousand, five".