40311712 has 72 divisors (see below), whose sum is σ = 94457664. Its totient is φ = 16877952.

The previous prime is 40311679. The next prime is 40311721. The reversal of 40311712 is 21711304.

It is a self number, because there is not a number n which added to its sum of digits gives 40311712.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73423 + ... + 73969.

It is an arithmetic number, because the mean of its divisors is an integer number (1311912).

Almost surely, 2^40311712 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 40311712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47228832).

40311712 is an abundant number, since it is smaller than the sum of its proper divisors (54145952).

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

40311712 is a wasteful number, since it uses less digits than its factorization.

40311712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618 (or 603 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 40311712 is about 6349.1504943575. The cubic root of 40311712 is about 342.8812583567.

The spelling of 40311712 in words is "forty million, three hundred eleven thousand, seven hundred twelve".