9402138830 has 64 divisors (see below), whose sum is σ = 20514280320. Its totient is φ = 3028783104.

The previous prime is 9402138817. The next prime is 9402138839. The reversal of 9402138830 is 388312049.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9402138839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 723026 + ... + 735914.

It is an arithmetic number, because the mean of its divisors is an integer number (320535630).

Almost surely, 2^9402138830 is an apocalyptic number.

9402138830 is an abundant number, since it is smaller than the sum of its proper divisors (11112141490).

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

9402138830 is a wasteful number, since it uses less digits than its factorization.

9402138830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13533.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 9402138830 is about 96964.6266944807. The cubic root of 9402138830 is about 2110.6143498322.

The spelling of 9402138830 in words is "nine billion, four hundred two million, one hundred thirty-eight thousand, eight hundred thirty".