40508235 has 32 divisors (see below), whose sum is σ = 72437760. Its totient is φ = 21477600.

The previous prime is 40508231. The next prime is 40508239. The reversal of 40508235 is 53280504.

40508235 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 (40508231) and next prime (40508239).

It is not a de Polignac number, because 40508235 - 2² = 40508231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40508199 and 40508208.

It is not an unprimeable number, because it can be changed into a prime (40508231) 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 31 ways as a sum of consecutive naturals, for example, 25000 + ... + 26570.

It is an arithmetic number, because the mean of its divisors is an integer number (2263680).

Almost surely, 2^40508235 is an apocalyptic number.

40508235 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40508235 is a deficient number, since it is larger than the sum of its proper divisors (31929525).

40508235 is a wasteful number, since it uses less digits than its factorization.

40508235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776 (or 1770 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 40508235 is about 6364.6080004978. The cubic root of 40508235 is about 343.4375470449.

Adding to 40508235 its reverse (53280504), we get a palindrome (93788739).

The spelling of 40508235 in words is "forty million, five hundred eight thousand, two hundred thirty-five".