40868837 has 4 divisors (see below), whose sum is σ = 40893216. Its totient is φ = 40844460.

The previous prime is 40868813. The next prime is 40868869. The reversal of 40868837 is 73886804.

It is a happy number.

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 40868837 - 2²⁴ = 24091621 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 (40868537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9473 + ... + 13094.

It is an arithmetic number, because the mean of its divisors is an integer number (10223304).

Almost surely, 2^40868837 is an apocalyptic number.

It is an amenable number.

40868837 is a deficient number, since it is larger than the sum of its proper divisors (24379).

40868837 is a wasteful number, since it uses less digits than its factorization.

40868837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24378.

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 40868837 is about 6392.8739233619. The cubic root of 40868837 is about 344.4536251185.

The spelling of 40868837 in words is "forty million, eight hundred sixty-eight thousand, eight hundred thirty-seven".