40397333 has 4 divisors (see below), whose sum is σ = 40438380. Its totient is φ = 40356288.

The previous prime is 40397323. The next prime is 40397369. The reversal of 40397333 is 33379304.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22061809 + 18335524 = 4697^2 + 4282^2 .

It is a cyclic number.

It is not a de Polignac number, because 40397333 - 2⁴ = 40397317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40397333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40397323) 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 3 ways as a sum of consecutive naturals, for example, 19010 + ... + 21027.

It is an arithmetic number, because the mean of its divisors is an integer number (10109595).

Almost surely, 2^40397333 is an apocalyptic number.

It is an amenable number.

40397333 is a deficient number, since it is larger than the sum of its proper divisors (41047).

40397333 is a wasteful number, since it uses less digits than its factorization.

40397333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41046.

The product of its (nonzero) digits is 20412, while the sum is 32.

The square root of 40397333 is about 6355.8896308857. The cubic root of 40397333 is about 343.1238435688.

The spelling of 40397333 in words is "forty million, three hundred ninety-seven thousand, three hundred thirty-three".