40486940 has 24 divisors (see below), whose sum is σ = 91563360. Its totient is φ = 14948928.

The previous prime is 40486907. The next prime is 40486949. The reversal of 40486940 is 4968404.

It is a self number, because there is not a number n which added to its sum of digits gives 40486940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40486949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77600 + ... + 78119.

It is an arithmetic number, because the mean of its divisors is an integer number (3815140).

Almost surely, 2^40486940 is an apocalyptic number.

It is an amenable number.

40486940 is an abundant number, since it is smaller than the sum of its proper divisors (51076420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40486940 is a wasteful number, since it uses less digits than its factorization.

40486940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155741 (or 155739 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 40486940 is about 6362.9348574380. The cubic root of 40486940 is about 343.3773552962.

The spelling of 40486940 in words is "forty million, four hundred eighty-six thousand, nine hundred forty".