30661634 has 8 divisors (see below), whose sum is σ = 46640448. Its totient is φ = 15114820.

The previous prime is 30661633. The next prime is 30661637. The reversal of 30661634 is 43616603.

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

It is a junction number, because it is equal to n+sod(n) for n = 30661597 and 30661606.

It is not an unprimeable number, because it can be changed into a prime (30661633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107822 + ... + 108105.

It is an arithmetic number, because the mean of its divisors is an integer number (5830056).

Almost surely, 2^30661634 is an apocalyptic number.

30661634 is a deficient number, since it is larger than the sum of its proper divisors (15978814).

30661634 is a wasteful number, since it uses less digits than its factorization.

30661634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216000.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 30661634 is about 5537.2948268988. The cubic root of 30661634 is about 312.9909390484.

The spelling of 30661634 in words is "thirty million, six hundred sixty-one thousand, six hundred thirty-four".