30289421942 has 16 divisors (see below), whose sum is σ = 49970112192. Its totient is φ = 13682291520.

The previous prime is 30289421909. The next prime is 30289421963. The reversal of 30289421942 is 24912498203.

It is a happy number.

It is a super-2 number, since 2×30289421942² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30289421893 and 30289421902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12392159 + ... + 12394602.

It is an arithmetic number, because the mean of its divisors is an integer number (3123132012).

Almost surely, 2^30289421942 is an apocalyptic number.

30289421942 is a deficient number, since it is larger than the sum of its proper divisors (19680690250).

30289421942 is a wasteful number, since it uses less digits than its factorization.

30289421942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24786823.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 30289421942 in words is "thirty billion, two hundred eighty-nine million, four hundred twenty-one thousand, nine hundred forty-two".