40093445 has 16 divisors (see below), whose sum is σ = 55226880. Its totient is φ = 27371904.

The previous prime is 40093441. The next prime is 40093451. The reversal of 40093445 is 54439004.

It is not a de Polignac number, because 40093445 - 2² = 40093441 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40093441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5969 + ... + 10761.

It is an arithmetic number, because the mean of its divisors is an integer number (3451680).

Almost surely, 2^40093445 is an apocalyptic number.

It is an amenable number.

40093445 is a deficient number, since it is larger than the sum of its proper divisors (15133435).

40093445 is a wasteful number, since it uses less digits than its factorization.

40093445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5044.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 40093445 is about 6331.9384867511. The cubic root of 40093445 is about 342.2612967266.

The spelling of 40093445 in words is "forty million, ninety-three thousand, four hundred forty-five".