40309033 has 8 divisors (see below), whose sum is σ = 41666688. Its totient is φ = 38972304.

The previous prime is 40309019. The next prime is 40309063. The reversal of 40309033 is 33090304.

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

It is a cyclic number.

It is not a de Polignac number, because 40309033 - 2⁵ = 40309001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40308995 and 40309013.

It is not an unprimeable number, because it can be changed into a prime (40309063) 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 7 ways as a sum of consecutive naturals, for example, 1266 + ... + 9067.

It is an arithmetic number, because the mean of its divisors is an integer number (5208336).

Almost surely, 2^40309033 is an apocalyptic number.

It is an amenable number.

40309033 is a deficient number, since it is larger than the sum of its proper divisors (1357655).

40309033 is a wasteful number, since it uses less digits than its factorization.

40309033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10463.

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 40309033 is about 6348.9395177463. The cubic root of 40309033 is about 342.8736625555.

Adding to 40309033 its reverse (33090304), we get a palindrome (73399337).

The spelling of 40309033 in words is "forty million, three hundred nine thousand, thirty-three".