40035009 has 12 divisors (see below), whose sum is σ = 62095344. Its totient is φ = 22877064.

The previous prime is 40035007. The next prime is 40035049. The reversal of 40035009 is 90053004.

It is not a de Polignac number, because 40035009 - 2¹ = 40035007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (40035007) 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, 136027 + ... + 136320.

It is an arithmetic number, because the mean of its divisors is an integer number (5174612).

Almost surely, 2^40035009 is an apocalyptic number.

40035009 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

40035009 is a deficient number, since it is larger than the sum of its proper divisors (22060335).

40035009 is a wasteful number, since it uses less digits than its factorization.

40035009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272364 (or 272357 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 40035009 is about 6327.3224194757. The cubic root of 40035009 is about 342.0949344877.

The spelling of 40035009 in words is "forty million, thirty-five thousand, nine".