30661002 has 24 divisors (see below), whose sum is σ = 67560480. Its totient is φ = 10046760.

The previous prime is 30660983. The next prime is 30661027. The reversal of 30661002 is 20016603.

It is a happy number.

30661002 is a `hidden beast` number, since 3 + 0 + 661 + 0 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13374 + ... + 15497.

It is an arithmetic number, because the mean of its divisors is an integer number (2815020).

Almost surely, 2^30661002 is an apocalyptic number.

30661002 is an abundant number, since it is smaller than the sum of its proper divisors (36899478).

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

30661002 is a wasteful number, since it uses less digits than its factorization.

30661002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28938 (or 28935 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 30661002 is about 5537.2377590275. The cubic root of 30661002 is about 312.9887885691.

Adding to 30661002 its reverse (20016603), we get a palindrome (50677605).

The spelling of 30661002 in words is "thirty million, six hundred sixty-one thousand, two".