40540635 has 16 divisors (see below), whose sum is σ = 72072480. Its totient is φ = 21621600.

The previous prime is 40540627. The next prime is 40540639. The reversal of 40540635 is 53604504.

It is not a de Polignac number, because 40540635 - 2³ = 40540627 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 = 40540599 and 40540608.

It is not an unprimeable number, because it can be changed into a prime (40540639) 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, 150016 + ... + 150285.

It is an arithmetic number, because the mean of its divisors is an integer number (4504530).

Almost surely, 2^40540635 is an apocalyptic number.

40540635 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40540635 is a deficient number, since it is larger than the sum of its proper divisors (31531845).

40540635 is a wasteful number, since it uses less digits than its factorization.

40540635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300315 (or 300309 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 40540635 is about 6367.1528173902. The cubic root of 40540635 is about 343.5290873711.

The spelling of 40540635 in words is "forty million, five hundred forty thousand, six hundred thirty-five".