805124740 has 48 divisors (see below), whose sum is σ = 1939521024. Its totient is φ = 275011200.

The previous prime is 805124737. The next prime is 805124741. The reversal of 805124740 is 47421508.

It is not an unprimeable number, because it can be changed into a prime (805124741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27330 + ... + 48550.

It is an arithmetic number, because the mean of its divisors is an integer number (40406688).

Almost surely, 2^805124740 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 805124740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (969760512).

805124740 is an abundant number, since it is smaller than the sum of its proper divisors (1134396284).

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

805124740 is a wasteful number, since it uses less digits than its factorization.

805124740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21508 (or 21506 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 805124740 is about 28374.7200867251. The cubic root of 805124740 is about 930.2957936818.

The spelling of 805124740 in words is "eight hundred five million, one hundred twenty-four thousand, seven hundred forty".