40359391 has 8 divisors (see below), whose sum is σ = 40771584. Its totient is φ = 39949560.

The previous prime is 40359383. The next prime is 40359421. The reversal of 40359391 is 19395304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40359391 - 2³ = 40359383 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 (40359091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63646 + ... + 64276.

It is an arithmetic number, because the mean of its divisors is an integer number (5096448).

Almost surely, 2^40359391 is an apocalyptic number.

40359391 is a deficient number, since it is larger than the sum of its proper divisors (412193).

40359391 is a wasteful number, since it uses less digits than its factorization.

40359391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 40359391 is about 6352.9041390533. The cubic root of 40359391 is about 343.0163869467.

The spelling of 40359391 in words is "forty million, three hundred fifty-nine thousand, three hundred ninety-one".