40785894 has 48 divisors (see below), whose sum is σ = 96046080. Its totient is φ = 12461040.

The previous prime is 40785853. The next prime is 40785911. The reversal of 40785894 is 49858704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8679 + ... + 12525.

It is an arithmetic number, because the mean of its divisors is an integer number (2000960).

Almost surely, 2^40785894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40785894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48023040).

40785894 is an abundant number, since it is smaller than the sum of its proper divisors (55260186).

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

40785894 is a wasteful number, since it uses less digits than its factorization.

40785894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3905 (or 3902 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 40785894 is about 6386.3834836314. The cubic root of 40785894 is about 344.2204452804.

The spelling of 40785894 in words is "forty million, seven hundred eighty-five thousand, eight hundred ninety-four".