7850904040 has 32 divisors (see below), whose sum is σ = 20188039680. Its totient is φ = 2691738432.

The previous prime is 7850904037. The next prime is 7850904043. The reversal of 7850904040 is 404090587.

It is an interprime number because it is at equal distance from previous prime (7850904037) and next prime (7850904043).

It is not an unprimeable number, because it can be changed into a prime (7850904043) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14019192 + ... + 14019751.

It is an arithmetic number, because the mean of its divisors is an integer number (630876240).

Almost surely, 2^7850904040 is an apocalyptic number.

7850904040 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7850904040 is an abundant number, since it is smaller than the sum of its proper divisors (12337135640).

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

7850904040 is a wasteful number, since it uses less digits than its factorization.

7850904040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28038961 (or 28038957 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 7850904040 is about 88605.3273793399. The cubic root of 7850904040 is about 1987.4973412936.

The spelling of 7850904040 in words is "seven billion, eight hundred fifty million, nine hundred four thousand, forty".