40838237 has 4 divisors (see below), whose sum is σ = 44550816. Its totient is φ = 37125660.

The previous prime is 40838227. The next prime is 40838243. The reversal of 40838237 is 73283804.

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 not a de Polignac number, because 40838237 - 2¹⁴ = 40821853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40838197 and 40838206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40838227) 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, 1856273 + ... + 1856294.

It is an arithmetic number, because the mean of its divisors is an integer number (11137704).

Almost surely, 2^40838237 is an apocalyptic number.

It is an amenable number.

40838237 is a deficient number, since it is larger than the sum of its proper divisors (3712579).

40838237 is a wasteful number, since it uses less digits than its factorization.

40838237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3712578.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 40838237 is about 6390.4801854008. The cubic root of 40838237 is about 344.3676352917.

The spelling of 40838237 in words is "forty million, eight hundred thirty-eight thousand, two hundred thirty-seven".