9850040409 has 32 divisors (see below), whose sum is σ = 14807715840. Its totient is φ = 5770036800.

The previous prime is 9850040399. The next prime is 9850040413. The reversal of 9850040409 is 9040400589.

9850040409 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9850040409 - 2⁵ = 9850040377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9850040479) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 891682 + ... + 902660.

It is an arithmetic number, because the mean of its divisors is an integer number (462741120).

Almost surely, 2^9850040409 is an apocalyptic number.

It is an amenable number.

9850040409 is a deficient number, since it is larger than the sum of its proper divisors (4957675431).

9850040409 is a wasteful number, since it uses less digits than its factorization.

9850040409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11901.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 9850040409 is about 99247.3697837882. The cubic root of 9850040409 is about 2143.6111336704.

The spelling of 9850040409 in words is "nine billion, eight hundred fifty million, forty thousand, four hundred nine".