30729360436 has 24 divisors (see below), whose sum is σ = 55521801216. Its totient is φ = 14871890880.

The previous prime is 30729360407. The next prime is 30729360443. The reversal of 30729360436 is 63406392703.

It is a super-2 number, since 2×30729360436² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30729360392 and 30729360401.

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, 716866 + ... + 758521.

It is an arithmetic number, because the mean of its divisors is an integer number (2313408384).

Almost surely, 2^30729360436 is an apocalyptic number.

It is an amenable number.

30729360436 is a deficient number, since it is larger than the sum of its proper divisors (24792440780).

30729360436 is a wasteful number, since it uses less digits than its factorization.

30729360436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475559 (or 1475557 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 43.

The spelling of 30729360436 in words is "thirty billion, seven hundred twenty-nine million, three hundred sixty thousand, four hundred thirty-six".