40380959 has 4 divisors (see below), whose sum is σ = 40434240. Its totient is φ = 40327680.

The previous prime is 40380917. The next prime is 40380971. The reversal of 40380959 is 95908304.

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

It is a cyclic number.

It is not a de Polignac number, because 40380959 - 2¹² = 40376863 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 (40380059) 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, 25487 + ... + 27024.

It is an arithmetic number, because the mean of its divisors is an integer number (10108560).

Almost surely, 2^40380959 is an apocalyptic number.

40380959 is a deficient number, since it is larger than the sum of its proper divisors (53281).

40380959 is an equidigital number, since it uses as much as digits as its factorization.

40380959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53280.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 40380959 is about 6354.6014037074. The cubic root of 40380959 is about 343.0774785521.

The spelling of 40380959 in words is "forty million, three hundred eighty thousand, nine hundred fifty-nine".