30285731842 has 8 divisors (see below), whose sum is σ = 45432373500. Its totient is φ = 15141607344.

The previous prime is 30285731743. The next prime is 30285731843. The reversal of 30285731842 is 24813758203.

It can be written as a sum of positive squares in 2 ways, for example, as 30279132081 + 6599761 = 174009^2 + 2569^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×30285731842³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (30285731843) 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, 598917 + ... + 647512.

Almost surely, 2^30285731842 is an apocalyptic number.

30285731842 is a deficient number, since it is larger than the sum of its proper divisors (15146641658).

30285731842 is a wasteful number, since it uses less digits than its factorization.

30285731842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258580.

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 30285731842 in words is "thirty billion, two hundred eighty-five million, seven hundred thirty-one thousand, eight hundred forty-two".