40012984 has 32 divisors (see below), whose sum is σ = 84063600. Its totient is φ = 17694720.

The previous prime is 40012969. The next prime is 40013023. The reversal of 40012984 is 48921004.

It is a congruent number.

It is an unprimeable number.

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, 2889 + ... + 9400.

Almost surely, 2^40012984 is an apocalyptic number.

40012984 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40012984 is an abundant number, since it is smaller than the sum of its proper divisors (44050616).

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

40012984 is a wasteful number, since it uses less digits than its factorization.

40012984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12343 (or 12339 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 40012984 is about 6325.5817123803. The cubic root of 40012984 is about 342.0321892117.

Adding to 40012984 its reverse (48921004), we get a palindrome (88933988).

The spelling of 40012984 in words is "forty million, twelve thousand, nine hundred eighty-four".