30769720 has 16 divisors (see below), whose sum is σ = 69231960. Its totient is φ = 12307872.

The previous prime is 30769693. The next prime is 30769727. The reversal of 30769720 is 2796703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30769727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384582 + ... + 384661.

Almost surely, 2^30769720 is an apocalyptic number.

It is an amenable number.

30769720 is an abundant number, since it is smaller than the sum of its proper divisors (38462240).

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

30769720 is a wasteful number, since it uses less digits than its factorization.

30769720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769254 (or 769250 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 30769720 is about 5547.0460607426. The cubic root of 30769720 is about 313.3582848195.

The spelling of 30769720 in words is "thirty million, seven hundred sixty-nine thousand, seven hundred twenty".