40301393 has 4 divisors (see below), whose sum is σ = 43965168. Its totient is φ = 36637620.

The previous prime is 40301389. The next prime is 40301411. The reversal of 40301393 is 39310304.

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 a cyclic number.

It is not a de Polignac number, because 40301393 - 2² = 40301389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40301383) 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, 1831871 + ... + 1831892.

It is an arithmetic number, because the mean of its divisors is an integer number (10991292).

Almost surely, 2^40301393 is an apocalyptic number.

It is an amenable number.

40301393 is a deficient number, since it is larger than the sum of its proper divisors (3663775).

40301393 is a wasteful number, since it uses less digits than its factorization.

40301393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663774.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 40301393 is about 6348.3378139478. The cubic root of 40301393 is about 342.8519989225.

Adding to 40301393 its reverse (39310304), we get a palindrome (79611697).

The spelling of 40301393 in words is "forty million, three hundred one thousand, three hundred ninety-three".