30621562340 has 12 divisors (see below), whose sum is σ = 64305280956. Its totient is φ = 12248624928.

The previous prime is 30621562297. The next prime is 30621562357. The reversal of 30621562340 is 4326512603.

It can be written as a sum of positive squares in 2 ways, for example, as 19730135296 + 10891427044 = 140464^2 + 104362^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30621562297 and 30621562306.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 765539039 + ... + 765539078.

It is an arithmetic number, because the mean of its divisors is an integer number (5358773413).

Almost surely, 2^30621562340 is an apocalyptic number.

It is an amenable number.

30621562340 is an abundant number, since it is smaller than the sum of its proper divisors (33683718616).

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

30621562340 is a wasteful number, since it uses less digits than its factorization.

30621562340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531078126 (or 1531078124 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 30621562340 in words is "thirty billion, six hundred twenty-one million, five hundred sixty-two thousand, three hundred forty".