30457823028 has 12 divisors (see below), whose sum is σ = 71068253760. Its totient is φ = 10152607672.

The previous prime is 30457823027. The next prime is 30457823029. The reversal of 30457823028 is 82032875403.

It is an interprime number because it is at equal distance from previous prime (30457823027) and next prime (30457823029).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30457823027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1269075948 + ... + 1269075971.

It is an arithmetic number, because the mean of its divisors is an integer number (5922354480).

Almost surely, 2^30457823028 is an apocalyptic number.

It is an amenable number.

30457823028 is an abundant number, since it is smaller than the sum of its proper divisors (40610430732).

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

30457823028 is a wasteful number, since it uses less digits than its factorization.

30457823028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2538151926 (or 2538151924 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 30457823028 in words is "thirty billion, four hundred fifty-seven million, eight hundred twenty-three thousand, twenty-eight".