40093505 has 4 divisors (see below), whose sum is σ = 48112212. Its totient is φ = 32074800.

The previous prime is 40093499. The next prime is 40093507. The reversal of 40093505 is 50539004.

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 30924721 + 9168784 = 5561^2 + 3028^2 .

It is not a de Polignac number, because 40093505 - 2⁶ = 40093441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40093507) 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, 4009346 + ... + 4009355.

It is an arithmetic number, because the mean of its divisors is an integer number (12028053).

Almost surely, 2^40093505 is an apocalyptic number.

It is an amenable number.

40093505 is a deficient number, since it is larger than the sum of its proper divisors (8018707).

40093505 is an equidigital number, since it uses as much as digits as its factorization.

40093505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8018706.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 40093505 is about 6331.9432246349. The cubic root of 40093505 is about 342.2614674584.

The spelling of 40093505 in words is "forty million, ninety-three thousand, five hundred five".