40012486 has 4 divisors (see below), whose sum is σ = 60018732. Its totient is φ = 20006242.

The previous prime is 40012481. The next prime is 40012517. The reversal of 40012486 is 68421004.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40012486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40012481) 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 as a sum of consecutive naturals, namely, 10003120 + ... + 10003123.

It is an arithmetic number, because the mean of its divisors is an integer number (15004683).

Almost surely, 2^40012486 is an apocalyptic number.

40012486 is a deficient number, since it is larger than the sum of its proper divisors (20006246).

40012486 is a wasteful number, since it uses less digits than its factorization.

40012486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20006245.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 40012486 is about 6325.5423482892. The cubic root of 40012486 is about 342.0307702329.

The spelling of 40012486 in words is "forty million, twelve thousand, four hundred eighty-six".