40305333 has 4 divisors (see below), whose sum is σ = 53740448. Its totient is φ = 26870220.

The previous prime is 40305313. The next prime is 40305347. The reversal of 40305333 is 33350304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40305333 - 2¹⁸ = 40043189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40305313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6717553 + ... + 6717558.

It is an arithmetic number, because the mean of its divisors is an integer number (13435112).

Almost surely, 2^40305333 is an apocalyptic number.

It is an amenable number.

40305333 is a deficient number, since it is larger than the sum of its proper divisors (13435115).

40305333 is a wasteful number, since it uses less digits than its factorization.

40305333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13435114.

The product of its (nonzero) digits is 1620, while the sum is 21.

The square root of 40305333 is about 6348.6481238134. The cubic root of 40305333 is about 342.8631713474.

Adding to 40305333 its reverse (33350304), we get a palindrome (73655637).

The spelling of 40305333 in words is "forty million, three hundred five thousand, three hundred thirty-three".