40947012 has 48 divisors (see below), whose sum is σ = 109038720. Its totient is φ = 13278816.

The previous prime is 40947007. The next prime is 40947029. The reversal of 40947012 is 21074904.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 15 ways as a sum of consecutive naturals, for example, 1128 + ... + 9119.

It is an arithmetic number, because the mean of its divisors is an integer number (2271640).

Almost surely, 2^40947012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40947012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54519360).

40947012 is an abundant number, since it is smaller than the sum of its proper divisors (68091708).

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

40947012 is a wasteful number, since it uses less digits than its factorization.

40947012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10297 (or 10289 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 40947012 is about 6398.9852320505. The cubic root of 40947012 is about 344.6731119209.

The spelling of 40947012 in words is "forty million, nine hundred forty-seven thousand, twelve".