40440033 has 16 divisors (see below), whose sum is σ = 60095040. Its totient is φ = 26877312.

The previous prime is 40440019. The next prime is 40440077. The reversal of 40440033 is 33004404.

It is not a de Polignac number, because 40440033 - 2⁴ = 40440017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40439988 and 40440015.

It is not an unprimeable number, because it can be changed into a prime (40440013) 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, 7410 + ... + 11652.

It is an arithmetic number, because the mean of its divisors is an integer number (3755940).

Almost surely, 2^40440033 is an apocalyptic number.

It is an amenable number.

40440033 is a deficient number, since it is larger than the sum of its proper divisors (19655007).

40440033 is a wasteful number, since it uses less digits than its factorization.

40440033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4605 (or 4599 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 40440033 is about 6359.2478328809. The cubic root of 40440033 is about 343.2446950202.

Adding to 40440033 its reverse (33004404), we get a palindrome (73444437).

The spelling of 40440033 in words is "forty million, four hundred forty thousand, thirty-three".