7800074940 has 192 divisors, whose sum is σ = 26720870400. Its totient is φ = 1660310784.

The previous prime is 7800074923. The next prime is 7800075001. The reversal of 7800074940 is 494700087.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 462537 + ... + 479103.

It is an arithmetic number, because the mean of its divisors is an integer number (139171200).

Almost surely, 2^7800074940 is an apocalyptic number.

7800074940 is a gapful number since it is divisible by the number (70) 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 7800074940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13360435200).

7800074940 is an abundant number, since it is smaller than the sum of its proper divisors (18920795460).

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

7800074940 is a wasteful number, since it uses less digits than its factorization.

7800074940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16664 (or 16662 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 7800074940 is about 88318.0329264641. The cubic root of 7800074940 is about 1983.1988339615.

The spelling of 7800074940 in words is "seven billion, eight hundred million, seventy-four thousand, nine hundred forty".