40302433 has 4 divisors (see below), whose sum is σ = 40718020. Its totient is φ = 39886848.

The previous prime is 40302421. The next prime is 40302473. The reversal of 40302433 is 33420304.

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 18558864 + 21743569 = 4308^2 + 4663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40302433 is a prime.

It is a super-2 number, since 2×40302433² = 3248572211438978, which contains 22 as substring.

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 40302433.

It is not an unprimeable number, because it can be changed into a prime (40302473) 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, 207648 + ... + 207841.

It is an arithmetic number, because the mean of its divisors is an integer number (10179505).

Almost surely, 2^40302433 is an apocalyptic number.

It is an amenable number.

40302433 is a deficient number, since it is larger than the sum of its proper divisors (415587).

40302433 is an equidigital number, since it uses as much as digits as its factorization.

40302433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415586.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 40302433 is about 6348.4197246244. The cubic root of 40302433 is about 342.8549480597.

Adding to 40302433 its reverse (33420304), we get a palindrome (73722737).

The spelling of 40302433 in words is "forty million, three hundred two thousand, four hundred thirty-three".