40497387 has 8 divisors (see below), whose sum is σ = 61710336. Its totient is φ = 23141352.

The previous prime is 40497367. The next prime is 40497389. The reversal of 40497387 is 78379404.

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

It is not a de Polignac number, because 40497387 - 2⁶ = 40497323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40497389) 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, 964203 + ... + 964244.

It is an arithmetic number, because the mean of its divisors is an integer number (7713792).

Almost surely, 2^40497387 is an apocalyptic number.

40497387 is a deficient number, since it is larger than the sum of its proper divisors (21212949).

40497387 is a wasteful number, since it uses less digits than its factorization.

40497387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928457.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 40497387 is about 6363.7557306987. The cubic root of 40497387 is about 343.4068870805.

The spelling of 40497387 in words is "forty million, four hundred ninety-seven thousand, three hundred eighty-seven".