40660433 has 4 divisors (see below), whose sum is σ = 44356848. Its totient is φ = 36964020.

The previous prime is 40660427. The next prime is 40660439. The reversal of 40660433 is 33406604.

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 an interprime number because it is at equal distance from previous prime (40660427) and next prime (40660439).

It is a cyclic number.

It is not a de Polignac number, because 40660433 - 2¹⁸ = 40398289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40660439) 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, 1848191 + ... + 1848212.

It is an arithmetic number, because the mean of its divisors is an integer number (11089212).

Almost surely, 2^40660433 is an apocalyptic number.

It is an amenable number.

40660433 is a deficient number, since it is larger than the sum of its proper divisors (3696415).

40660433 is a wasteful number, since it uses less digits than its factorization.

40660433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3696414.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 40660433 is about 6376.5533793735. The cubic root of 40660433 is about 343.8671319618.

The spelling of 40660433 in words is "forty million, six hundred sixty thousand, four hundred thirty-three".