40847040 has 168 divisors, whose sum is σ = 151442928. Its totient is φ = 10045440.

The previous prime is 40846999. The next prime is 40847041. The reversal of 40847040 is 4074804.

It is a junction number, because it is equal to n+sod(n) for n = 40846995 and 40847013.

It is not an unprimeable number, because it can be changed into a prime (40847041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36895 + ... + 37985.

It is an arithmetic number, because the mean of its divisors is an integer number (901446).

Almost surely, 2^40847040 is an apocalyptic number.

40847040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40847040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75721464).

40847040 is an abundant number, since it is smaller than the sum of its proper divisors (110595888).

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

40847040 is a wasteful number, since it uses less digits than its factorization.

40847040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127 (or 1114 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 40847040 is about 6391.1689071718. The cubic root of 40847040 is about 344.3923772225.

The spelling of 40847040 in words is "forty million, eight hundred forty-seven thousand, forty".