40368957 has 8 divisors (see below), whose sum is σ = 55681440. Its totient is φ = 25984560.

The previous prime is 40368953. The next prime is 40368983. The reversal of 40368957 is 75986304.

It is a happy number.

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

It is not a de Polignac number, because 40368957 - 2² = 40368953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40368953) 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, 231919 + ... + 232092.

It is an arithmetic number, because the mean of its divisors is an integer number (6960180).

Almost surely, 2^40368957 is an apocalyptic number.

It is an amenable number.

40368957 is a deficient number, since it is larger than the sum of its proper divisors (15312483).

40368957 is a wasteful number, since it uses less digits than its factorization.

40368957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464043.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 40368957 is about 6353.6569784652. The cubic root of 40368957 is about 343.0434854358.

The spelling of 40368957 in words is "forty million, three hundred sixty-eight thousand, nine hundred fifty-seven".