30420238692 has 48 divisors (see below), whose sum is σ = 73452435840. Its totient is φ = 9787185408.

The previous prime is 30420238661. The next prime is 30420238699. The reversal of 30420238692 is 29683202403.

It is a self number, because there is not a number n which added to its sum of digits gives 30420238692.

It is not an unprimeable number, because it can be changed into a prime (30420238699) 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, 1181953 + ... + 1207415.

It is an arithmetic number, because the mean of its divisors is an integer number (1530259080).

Almost surely, 2^30420238692 is an apocalyptic number.

It is an amenable number.

30420238692 is an abundant number, since it is smaller than the sum of its proper divisors (43032197148).

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

30420238692 is a wasteful number, since it uses less digits than its factorization.

30420238692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28932 (or 28930 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 30420238692 in words is "thirty billion, four hundred twenty million, two hundred thirty-eight thousand, six hundred ninety-two".