30690505 has 8 divisors (see below), whose sum is σ = 37094400. Its totient is φ = 24375216.

The previous prime is 30690469. The next prime is 30690521. The reversal of 30690505 is 50509603.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 30690505 - 2²³ = 22301897 is a prime.

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, 21385 + ... + 22774.

It is an arithmetic number, because the mean of its divisors is an integer number (4636800).

Almost surely, 2^30690505 is an apocalyptic number.

It is an amenable number.

30690505 is a deficient number, since it is larger than the sum of its proper divisors (6403895).

30690505 is a wasteful number, since it uses less digits than its factorization.

30690505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44303.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 30690505 is about 5539.9011724037. The cubic root of 30690505 is about 313.0891456723.

The spelling of 30690505 in words is "thirty million, six hundred ninety thousand, five hundred five".