30457875420 has 96 divisors (see below), whose sum is σ = 108294681600. Its totient is φ = 6961799232.

The previous prime is 30457875403. The next prime is 30457875421. The reversal of 30457875420 is 2457875403.

30457875420 is a `hidden beast` number, since 3 + 0 + 4 + 578 + 7 + 54 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30457875421) 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, 4025040 + ... + 4032599.

It is an arithmetic number, because the mean of its divisors is an integer number (1128069600).

Almost surely, 2^30457875420 is an apocalyptic number.

30457875420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30457875420 is an abundant number, since it is smaller than the sum of its proper divisors (77836806180).

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

30457875420 is a wasteful number, since it uses less digits than its factorization.

30457875420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8057664 (or 8057656 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 45.

It can be divided in two parts, 3045 and 7875420, that added together give a triangular number (7878465 = T₃₉₆₉).

The spelling of 30457875420 in words is "thirty billion, four hundred fifty-seven million, eight hundred seventy-five thousand, four hundred twenty".