40231885 has 8 divisors (see below), whose sum is σ = 48323736. Its totient is φ = 32155200.

The previous prime is 40231837. The next prime is 40231889. The reversal of 40231885 is 58813204.

It can be written as a sum of positive squares in 4 ways, for example, as 7946761 + 32285124 = 2819^2 + 5682^2 .

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

It is not a de Polignac number, because 40231885 - 2¹³ = 40223693 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 (40231889) 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, 3235 + ... + 9535.

It is an arithmetic number, because the mean of its divisors is an integer number (6040467).

Almost surely, 2^40231885 is an apocalyptic number.

It is an amenable number.

40231885 is a deficient number, since it is larger than the sum of its proper divisors (8091851).

40231885 is a wasteful number, since it uses less digits than its factorization.

40231885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7583.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 40231885 is about 6342.8609475536. The cubic root of 40231885 is about 342.6547793513.

The spelling of 40231885 in words is "forty million, two hundred thirty-one thousand, eight hundred eighty-five".