40840336 has 20 divisors (see below), whose sum is σ = 80244864. Its totient is φ = 20132000.

The previous prime is 40840333. The next prime is 40840339. The reversal of 40840336 is 63304804.

It is an interprime number because it is at equal distance from previous prime (40840333) and next prime (40840339).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40840333) 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, 16840 + ... + 19111.

Almost surely, 2^40840336 is an apocalyptic number.

It is an amenable number.

40840336 is a deficient number, since it is larger than the sum of its proper divisors (39404528).

40840336 is a wasteful number, since it uses less digits than its factorization.

40840336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36030 (or 36024 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 40840336 is about 6390.6444119510. The cubic root of 40840336 is about 344.3735351161.

The spelling of 40840336 in words is "forty million, eight hundred forty thousand, three hundred thirty-six".